VTSNLP/preprocess_MCQ · Datasets at Hugging Face

text stringlengths 74 5k	input_ids listlengths 57 3.45k	attention_mask listlengths 57 3.45k
<s> Chọn đáp án đúng với câu hỏi: She tried very hard to pass the driving test. She could hardly pass it. A. Although she didn’t try hard to pass the driving test, she could pass it. B. Despite being able to pass the driving test, she didn’t pass it. C. No matter how hard she tried, she could hardly pass the driving test. D. She tried very hard, so she passed the driving test satisfactorily. Đáp án là: C. No matter how hard she tried, she could hardly pass the driving test. </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 2296, 1898, 1407, 2898, 304, 1209, 278, 19500, 1243, 29889, 2296, 1...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Trong tự nhiên đồng có 2 đồng vị là 63 Cu và 65 Cu, t rong đó tỉ lệ số nguyên tử 63 Cu : 65 Cu = 81 : 219. Nếu hoàn tan một miếng đồng nặng 19,062 gam bằng dung dịch HNO 3 loãng thì thể tích khí NO (đktc) thu được là: (3Cu + 8HNO 3 → 3Cu(NO 3 ) 2 + 2NO + 4H 2 O) A. 2,24. B. 3,36. C. 4,48. D. 6,72. Đáp án là: C. 4,48. </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 1605, 549, 5291, 207, 158, 31214, 302, 29882, 347, 31500, 29876, 29...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Cơ cấu nền kinh tế bao gồm A. cơ cấu lao động, cơ cấu lãnh thổ, cơ cấu thành phần kinh tế. B. cơ cấu nông - lâm - ngư nghiệp, công nghiệp - xây dựng, dịch vụ. C. cơ cấu ngành kinh tế, cơ cấu thành phần kinh tế, cơ cấu lãnh thổ. D. cơ cấu kinh tế trong nước, cơ cấu kinh tế có vốn đầu tư nước ngoài. Đáp án là: C. cơ cấu ngành kinh tế, cơ cấu thành phần kinh tế, cơ cấu lãnh thổ. </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 3189, 207, 158, 5777, 31500, 30103, 29884, 452, 31500, 30712, 29876, ...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Hai tấm kim loại song song, cách nhau 2 (cm) và được nhiễm điện trái dấu nhau. Muốn làm cho điện tích q = 5.10 - 10 (C) di chuyển từ tấm này đến tấm kia cần tốn một công A = 2.10 - 9 10 - 7 (J). Coi điện trường bên trong khoảng giữa hai tấm kim loại là điện trường đều và có các đường sức điện vuông góc với các tấm. Cường độ điện trường bên trong tấm kim loại đó là: A. E = 2 (V/m). B. E = 40 (V/m). C. E = 200 (V/m). D. E = 400 (V/m). Đáp án là: C. E = 200 (V/m). </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 379, 1794, 11062, 31500, 30103, 29885, 413, 326, 658, 29874, 31214, ...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Nhận định nào dưới đây không phải vấn đề xã hội khiến các nước ASEAN phải quan tâm? A. Vấn đề tôn giáo, sự hòa hợp giữa các dân tộc. B. Thất nghiệp, đào tạo nguồn lực. C. Sử dụng tài nguyên và bảo vệ môi trường. D. GDP có sự chênh lệch lớn giữa các quốc gia. Đáp án là: D. GDP có sự chênh lệch lớn giữa các quốc gia </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 405, 2350, 31214, 31500, 29876, 29871, 30128, 29875, 31214, 29876, 29...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Đông Nam Á có vị trí địa - chính trị rất quan trọng vì A. Khu vực này tập trung rất nhiều loại khoáng sản. B. Là nơi đông dân nhất thế giới, tập trung nhiều thành phần dân tộc. C. Nền kinh tế phát triển mạnh và đang trong quá trình công nghiệp hóa, hiện đại hóa. D. Là nơi tiếp giáp giữa hai đại dương, vị trí cầu nối giữa hai châu lục và có nền kinh tế phát triển năng động. Đáp án là: D. Là nơi tiếp giáp giữa hai đại dương, vị trí cầu nối giữa hai châu lục và có nền kinh tế phát triển năng động </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 29871, 30250, 29877, 31500, 865, 13041, 319, 30103, 1302, 30103, 3516...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Nhân tố quan trọng hàng đầu trong việc hình thành và phát triển nền văn minh Đại Việt là A. tiền đề từ các nền văn minh cổ trên đất nước ta. B. sự du nhập của các thành tựu văn minh bên ngoài. C. nền độc lập, tự chủ của quốc gia Đại Việt. D. sự giao lưu và tiếp biến với văn hóa Trung Quốc. Đáp án là: C. nền độc lập, tự chủ của quốc gia Đại Việt. </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 405, 2350, 31500, 29876, 304, 31500, 30103, 29195, 3147, 31214, 865, ...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Hạn chế lớn nhất làm mục tiêu của cuộc tổng công kích, tổng nổi dậy Tết Mậu Thân 1968 không đạt được là gì? A. Ta chủ quan trong việc đánh giá cao lực ỉượng của mình, đánh giá thấp lực lượng địch. B. Do tư tưởng nóng vội, muốn giành thắng lợi lớn, kết thúc nhanh chiến tranh. C. Chỉ đạo không chủ động, kịp thời điều chỉnh kế hoạch rút khỏi thành phố sau đợt I. D. Lực lượng của địch còn đông, cơ sở ở thành thị còn mạnh. Đáp án là: A. Ta chủ quan trong việc đánh giá cao lực ỉượng của mình, đánh giá thấp lực lượng địch. </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 5952, 31214, 29876, 923, 31500, 30103, 658, 207, 158, 30103, 29876, ...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Các loại gió nào sau đây thường mang lại lượng mưa lớn? A. Gió Mậu dịch, gió mùa B. Gió Mậu dịch, gió phơn C. Gió Tây ôn đới, gió mùa D. Gió Tây ôn đới, gió Mậu dịch Đáp án là: C. Gió Tây ôn đới, gió mùa </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 9243, 30103, 29883, 658, 29874, 31214, 29875, 330, 601, 30103, 1055, ...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Cho phản ứng hóa học sau: M + HNO 3 → M(NO 3 ) n + NO↑ + H 2 O. Hệ số cân bằng của phản ứng lần lượt là: A. 3, 4n, 3, 2n, 2n; B. 2, 4n, 2, n, 2n; C. 3, 4n, 3, 2n, n; D. 3, 4n, 3, n, 2n. Đáp án là: D. 3, 4n, 3, n, 2n </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 14542, 1374, 29874, 207, 140, 29876, 318, 207, 158, 30103, 865, 508...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Tách ra một chùm hẹp ánh sáng Mặt Trời cho rọi xuống mặt nước của một bể bơi. Chùm sáng này đi vào trong nước tạo ra ở đáy bể một dải sáng có màu từ đỏ đến tím. Đây là hiện tượng A. giao thoa ánh sáng B. nhiễu xạ ánh sáng C. tán sắc ánh sáng D. phản xạ ánh sáng Đáp án là: C. tán sắc ánh sáng </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 10523, 30103, 305, 1153, 2730, 31214, 31500, 29873, 521, 29884, 30712...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Một loại nước cứng có chứa các ion : Ca 2+, Mg 2+, Cl −, HCO 3 − ; trong đó nồng độ của Cl − là 0,006M và HCO 3 − là 0,01M. Hãy cho biết cần lấy bao nhiêu ml dung dịch Na 2 CO 3 0,2 M để biến 1 lít nước cứng đó thành nước mềm? (coi như các chất kết tủa hoàn toàn). A. 20 ml. B. 80 ml. C. 60 ml. D. 40 ml Đáp án là: D. 40 ml </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 4546, 31214, 31500, 29873, 658, 29874, 31214, 29875, 4948, 207, 158, ...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Phát biểu nào sau đây là sai? A. Liên kết hóa học chủ yếu trong hợp chất hữu cơ là liên kết cộng hóa trị. B. Các chất có cấu tạo và tính chất tương tự nhau nhưng về thành phần phân tử khác nhau một hay nhiều nhóm CH 2 là đồng đẳng của nhau. C. Các chất có cùng khối lượng phân tử là đồng phân của nhau. D. Liên kết ba gồm hai liên kết p và một liên kết s. Đáp án là: C. Các chất có cùng khối lượng phân tử là đồng phân của nhau. </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 1963, 29874, 30103, 29873, 289, 347, 31500, 207, 140, 29884, 1055, ...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: If we leave here now, we can drive half the distance before we stop _________ lunch. A. for having B. having had C. having D. to have Đáp án là: D. to have </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 960, 591, 5967, 1244, 1286, 29892, 591, 508, 7899, 4203, 278, 5418,...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Khi cho từ từ dung dịch HCl vào dung dịch Na 2 CO 3 khuấy đều, hiện tượng xảy ra là A. Xuất hiện chất khí bay ra ngay khi cho HCl vào B. Sau 1 thời gian thấy xuất hiện chất khí bay ra, dung dịch trong suốt C. Không có khí thoát ra D. Có khí thoát ra và xuất hiện kết tủa Đáp án là: B. Sau 1 thời gian thấy xuất hiện chất khí bay ra, dung dịch trong suốt </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 476, 2918, 3060, 5291, 207, 158, 30712, 5291, 207, 158, 30712, 270,...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Một loài thực vật có bộ NST lưỡng bội là 2n = 24. Có 5 tế bào đang tiến hành quá trình phân bào nguyên phân 3 lần liên tiếp. Tổng số NST kép ở kì đầu của lần nguyên phân cuối cùng là bao nhiêu? A. 24 NST đơn B. 24 NST kép C. 24 NST đơn D. 48 NST kép Đáp án là: C. 24 NST đơn </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 4546, 31214, 31500, 29873, 658, 29874, 30712, 29875, 266, 29884, 207,...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Biết rằng đồ thị hàm số y=(√(3x+1)+ax+b)/((x−1)^2) không có tiệm cận đứng. Giá trị ab bằng A. -2 B. 2 C. 15/16 D. (-15)/16 Đáp án là: C. 15/16 </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 3457, 30717, 29873, 364, 228, 189, 180, 865, 29871, 30128, 30926, 2...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Choose the word whose stress pattern is different from the rest A. expectation B. temperament C. opportunity D. decoration Đáp án là: B. temperament </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 14542, 852, 278, 1734, 5069, 22884, 4766, 338, 1422, 515, 278, 1791...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: _______ appear, they are really much larger than the Earth. A. Small as the stars B. The stars as small C. As the small stars D. Despite of the small stars Đáp án là: A. Small as the stars </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 903, 7652, 1649, 2615, 29892, 896, 526, 2289, 1568, 7200, 1135, 278...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: The word " congested " in paragraph 1 could best be replaced by A. hazardous B. polluted C. crowded D. rushed Đáp án là: C. crowded </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 450, 1734, 376, 378, 29887, 2868, 376, 297, 14880, 29871, 29896, 10...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Bài học chủ yếu nào có thể rút ra cho cách mạng Việt Nam từ sự chia rẽ của ba tổ chức cộng sản năm 1929? A. Xây dựng khối đoàn kết trong Đảng. B. Thống nhất trong lực lượng lãnh đạo. C. Xây dựng khối liên minh công nông vững chắc. D. Thống nhất về tư tưởng chính trị. Đáp án là: A. Xây dựng khối đoàn kết trong Đảng. </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 6000, 30712, 29875, 5089, 31214, 29883, 521, 29884, 207, 140, 8007, ...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Chiến thắng nào đã đè bẹp ý chí xâm lược của quân Minh, buộc Vương Thông phải giảng hòa, kết thúc chiến tranh? A. Tân Bình, Thuận Hóa B. Tốt Động, Chúc Động C. Chi Lăng- Xương Giang D. Ngọc Hồi- Đống Đa Đáp án là: C. Chi Lăng- Xương Giang </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 678, 347, 31500, 30103, 29876, 266, 29874, 207, 137, 30103, 865, 10...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Hiện nay, siêu đô thị tập trung nhiều nhất ở châu lục nào? A. Châu Âu. B. Châu Phi. C. Châu Á. D. Châu Đại Dương. Đáp án là: C. Châu Á. </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 379, 347, 31214, 31500, 29876, 302, 388, 29892, 2686, 31500, 29884, ...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Nội dung nào không phản ánh đúng nguyên nhân ở vùng Địa Trung Hải chỉ có thể hình thành các thị quốc nhỏ? A. Ở vùng ven bờ Bắc biển Địa Trung Hải có nhiều đồi núi chia cắt đất đai B. Địa hình chia cắt nên không có điều kiện để tập trung dân cư C. Không có thị quốc đủ lớn mạnh để chinh phục được các thị quốc khác trong vùng D. Cư dân sống thiên về nghề buôn và nghề thủ công, không cần sự tập trung đông đúc Đáp án là: C. Không có thị quốc đủ lớn mạnh để chinh phục được các thị quốc khác trong vùng </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 1939, 31214, 31500, 29875, 270, 686, 1055, 30712, 29877, 413, 1251, ...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Cuộc khủng hoảng kinh tế 1929 – 1933 ở Mỹ bắt đầu từ ngành nào? A. Nông nghiệp. B. Công nghiệp. C. Tài chính ngân hàng. D. Năng lượng. Đáp án là: C. Tài chính ngân hàng. </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 10406, 29877, 31214, 31500, 29883, 413, 6905, 207, 140, 865, 5089, ...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Cho (− 2)^4.( − 2)^7 và (− 2)^15 : (− 2)^4. Nhận định đúng là: A. (− 2)^4.( − 2)^7 < (− 2)^15 : (− 2)^4; B. (− 2)^4.( − 2)^7 > (− 2)^15 : (− 2)^4; C. (− 2)^4.( − 2)^7 = (− 2)^15 : (− 2)^4; D. (− 2)^4.( − 2)^7 ≠ (− 2)^15 : (− 2)^4. Đáp án là: C. (− 2)^4.( − 2)^7 = (− 2)^15 : (− 2)^4; </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 14542, 313, 30120, 29871, 29906, 4887, 29946, 14030, 13935, 29871, 29...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Cho các thí nghiệm sau: (1) sục khí H 2 S vào dung dịch FeSO 4 ; (2) cho dung dịch K 2 SO 4 vào dung dịch BaCl 2 ; (3) sục khí H 2 S vào dung dịch CuSO 4 ; (4) sục khí CO 2 vào dung dịch Na 2 SiO 3 ; (5) sục khí CO 2 (dư) vào dung dịch Ca(OH) 2 ; (6) cho dung dịch NH 3 (dư) vào dung dịch AlCl 3. Thí nghiệm thu được kết tủa là A. (1),(2),(3),(4) B. (2),(3),(5),(6) C. (2),(3),(4),(6) D. (1),(3),(5),(6) Đáp án là: C. (2),(3),(4),(6) </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 14542, 5777, 30103, 29883, 266, 29875, 30103, 8736, 29882, 347, 31214...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Một bóng đèn có ghi: 6V-3W, khi mắc bóng đèn trên vào hiệu điện thế 6V thì cường độ dòng điện qua bóng đèn là: A. 3A B. 6A C. 0,5A D. 18A Đáp án là: C. 0,5A </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 4546, 31214, 31500, 29873, 1045, 30103, 865, 29871, 30128, 29872, 307...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Cách mạng công nghiệp thế kỉ XVIII diễn ra đầu tiên ở A. Đức. B. Anh. C. Pháp. D. Mĩ. Đáp án là: B. Anh. </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 9243, 30103, 305, 611, 31214, 865, 1302, 31500, 865, 8736, 29882, 3...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Trong các kiểu gen dưới đây, kiểu gen nào giảm phân bình thường chỉ cho một loại giao tử? A. Aabb B. AABb C. aaBB D. AaBb Đáp án là: C. aaBB </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 1605, 549, 5777, 30103, 29883, 413, 347, 31500, 207, 140, 29884, 25...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Để giải một bài tập cần phải giải hai bài tập. Bài tập 1 có 9 cách giải, bài tập 2 có 5 cách giải. Số các cách để hoàn thành bài tập trên là : A. 3; B. 45; C. 5; D. 12. Đáp án là: B. 45; </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 29871, 30250, 31957, 4005, 30643, 29875, 286, 30902, 29873, 289, 3000...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Một vật nhỏ dao động điều hòa theo một trục cố định. Phát biểu nào sau đây đúng? A. Quỹ đạo chuyển động của vật là một đường thẳng. B. Lực kéo về tác dụng vào vật không đổi. C. Li độ của vật tỉ lệ với thời gian dao động. D. Quỹ đạo chuyển động của vật là một đường hình sin. Đáp án là: A. Quỹ đạo chuyển động của vật là một đường thẳng. </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 4546, 31214, 31500, 29873, 2947, 31214, 31500, 29873, 302, 1251, 207,...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Phương trình cot(45°−x)=(√(3))/3 có họ nghiệm là A. x=−15°+k360°. B. x=165°+k360°. C. x=−15°+k180°. D. x=45°+k360°. Đáp án là: C. x=−15°+k180°. </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 1963, 30416, 30556, 865, 534, 30097, 29876, 29882, 20118, 29898, 2994...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Một vật nhỏ có chuyển động là tổng hợp của hai dao động điều hòa cùng phương. Hai dao động này có phương trình là x 1 = A 1 cos ω t v à x 2 = A 2 cos ω t + π 2. Gọi E là cơ năng của vật. Khối lượng của vật bằng A. E ω 2 A 1 2 + A 2 2 B. 2 E ω 2 A 1 2 + A 2 2 C. E ω 2 A 1 2 + A 2 2 D. 2 E ω 2 A 1 2 + A 2 2 Đáp án là: D. 2 E ω 2 A 1 2 + A 2 2 </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 4546, 31214, 31500, 29873, 2947, 31214, 31500, 29873, 302, 1251, 207,...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Các nước nào sau đây phát triển mạnh giao thông đường sông, hồ? A. Nhật Bản, LB Nga, Ấn Độ. B. Nhật Bản, LB Nga, Na Uy. C. Hoa Kì, LB Nga, Ca-na-đa. D. Hoa Kì, LB Nga, Đan Mạch. Đáp án là: C. Hoa Kì, LB Nga, Ca-na-đa. </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 9243, 30103, 29883, 4948, 207, 158, 29877, 207, 158, 30103, 29883, ...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Phải treo một vật có trọng lượng bằng bao nhiêu vào lò xo có độ cứng k = 100N/m để nó dãn ra được 10cm? A. 10N B. 5N C. 7,5N D. 12,5N Đáp án là: A. 10N </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 1963, 29874, 207, 140, 29875, 2578, 29877, 2730, 31214, 31500, 29873,...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Gen là gì? A. Nhân tố di truyền B. Một đoạn của phân tử ADN C. Là NST D. Một đoạn của phân tử ARN Đáp án là: B. Một đoạn của phân tử ADN </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 5739, 425, 30712, 4005, 30712, 29973, 13, 29909, 29889, 405, 2350, ...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Công thức nào sau đây sai? A. x^n⋅x^m=xn.^m(m, n ∈ N); B. x^m:x^n=xm−^n (x ≠ 0; m ≥ n; m, n ∈ N); C. ((x)/(y))^n=(x^n)/(y^n) (y ≠ 0, n ∈ N); D. (x^m)^n=xm.^n(m, n ∈ N). Đáp án là: A. x^n⋅x^m=xn.^m(m, n ∈ N); </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 315, 30069, 865, 266, 31318, 29883, 302, 30001, 29877, 12507, 29871, ...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Nhận định nào sau đây không đúng với hiện trạng sử dụng tài nguyên đất ở nước ta hiện nay? A. Diện tích đất trống, đồi núi trọc giảm mạnh. B. Diện tích đất đai bị suy thoái chỉ còn không đáng kể. C. Phần lớn diện tích đất đai bị đe dọa hoang mạc hóa. D. Xâm thực, xói mòn đất diễn ra nhiều nơi ở vùng đồi núi. Đáp án là: B. Diện tích đất đai bị suy thoái chỉ còn không đáng kể. </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 405, 2350, 31214, 31500, 29876, 29871, 30128, 29875, 31214, 29876, 29...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Chỉ ra công thức đúng của định luật Cu – lông trong chân không A. F = k. q 1 q 2 r 2. B. F = k. q 1 q 2 r. C. F = k q 1 q 2 r. D. F = q 1 q 2 k r Đáp án là: A. F = k. q 1 q 2 r 2. </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 18168, 207, 140, 1153, 1302, 31500, 865, 266, 29884, 207, 158, 3010...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Văn học Việt Nam từ thế kỉ X đến hết thế kỉ XIX (văn học trung đại) gồm những thành phần văn học: A. Văn học chữ Hán. B. Văn học chữ Nôm. C. Văn học chữ Hán và văn học chữ Nôm. D. Văn học chữ quốc ngữ. Đáp án là: C. Văn học chữ Hán và văn học chữ Nôm. </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 12549, 207, 137, 29876, 5089, 31214, 29883, 21769, 31214, 31500, 2987...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Let’s ask our teacher how to solve this problem _________ we can’t agree on the answer. A. Since B. because of C. due to D. owing to Đáp án là: A. Since </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 2803, 30010, 29879, 2244, 1749, 15703, 920, 304, 4505, 445, 1108, 9...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Trong công thức hóa học của hiđrô sunfua H 2 S và khí sunfurơ S O 2, hóa trị của lưu huỳnh lần lượt là: A. I và II B. II và IV C. II và VI D. IV và VI Đáp án là: B. II và IV </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 1605, 549, 1302, 31500, 865, 266, 29884, 207, 158, 30103, 29883, 50...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Bạn Tú mua một túi bánh mì gồm 3 cái bánh mì có giá 21 300 đồng. Giá tiền của 1 cái bánh mì là: A. 8 100 đồng B. 7 100 đồng C. 8 000 đồng D. 7 500 đồng Đáp án là: B. 7 100 đồng </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 350, 30540, 29876, 323, 30030, 286, 3357, 286, 30902, 29873, 260, 3...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Hiệu của 352,19 và 89,471 là : A. 5,748 B. 262,719 C. 263,719 D. 57,48 Đáp án là: B. 262,719 </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 6324, 30529, 29884, 274, 31556, 29874, 29871, 29941, 29945, 29906, 29...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Cho tập hợp M có 10 phần tử. Số tập con gồm 2 phần tử của M là A. A108 B. A102 C. C102 D. 10^2 Đáp án là: C. C102 </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 14542, 260, 31142, 29886, 298, 31645, 29886, 341, 28810, 29871, 29896...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Tính thể tích khối trụ có bán kính R = 3, chiều cao h = 5 A. V = 45π B. V = 45 C. V = 15π D. V = 90π Đáp án là: A. V = 45π </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 323, 3642, 29882, 266, 31957, 260, 18353, 413, 29882, 30984, 29875, ...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Hai điểm M và M' phân biệt và đối xứng nhau qua mặt phẳng (Oxyz). Phát biểu nào sau đây là đúng? A. Hai điểm M và M' có cùng tung độ và cao độ. B. Hai điểm M và M' có cùng hoành độ và cao độ. C. Hai điểm M và M' có hoành độ đối nhau. D. Hai điểm M và M' có cùng hoành độ và tung độ. Đáp án là: D. Hai điểm M và M' có cùng hoành độ và tung độ </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 379, 1794, 29871, 30128, 29875, 31957, 29885, 341, 325, 30001, 341, ...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Dung dịch chất nào sau đây làm quỳ tím chuyển thành màu hồng? A. axit α-aminoglutaric B. Axit α,ε-điaminocaproic C. Axit α-aminopropionic D. Axit aminoaxetic Đáp án là: A. axit α-aminoglutaric </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 360, 686, 652, 31214, 305, 10329, 31500, 30103, 29873, 1055, 30712, ...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Centuries ago, news was obtained either by word of mouth, with town criers (53)...............citizens of news and bylaws, or from print, with notices posted on doors of local inn. A. explaining B. informing C. noting D. communicating Đáp án là: B. informing </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 2895, 14886, 8020, 29892, 9763, 471, 7625, 2845, 491, 1734, 310, 13...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Các tỉ số nào sau đây lập thành một tỉ lệ thức? A. $\frac{5}{7}:\frac{-3}{14}$ và $\frac{-1}{14}:\frac{3}{10}$; B. $\frac{2}{-5}$ và$\frac{-6}{12}$; C. (−3) : 7 và 6 : (−7); D. $(-1):\frac{2}{5}$ và $\frac{-5}{3}:\frac{4}{6}$. Đáp án là: D. $(-1):\frac{2}{5}$ và $\frac{-5}{3}:\frac{4}{6}$ </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 315, 25968, 260, 228, 190, 140, 269, 30984, 302, 30001, 29877, 1250...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Đâu không phải là sáng tác của Trịnh Xuân Thuận? A. Tôi đã trở về trên núi cao B. Giai điệu bí ẩn C. Trò chuyện với Trịnh Xuân Thuận D. Hỗn độn và hài hòa Đáp án là: A. Tôi đã trở về trên núi cao </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 29871, 30250, 29874, 31500, 29884, 413, 1251, 31500, 865, 1374, 29874...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Bài thơ “Bạn đến chơi nhà” được viết theo thể thơ nào? A. Thất ngôn tứ tuyệt B. Thất ngôn bát cú C. Thất ngôn xen lục ngôn D. Song thất lục bát Đáp án là: B. Thất ngôn bát cú </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 6000, 30712, 29875, 266, 29877, 207, 158, 1346, 29933, 29874, 31214, ...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Có 4 dung dịch đựng trong 4 lọ mất nhãn là: (NH 4 ) 2 SO 4, NH 4 Cl, Na 2 SO 4, NaOH. Nếu chỉ được phép sử dụng một thuốc thử để nhận biết 4 dung dịch trên, có thể dùng dung dịch: A. AgNO 3 B. Ba(OH) 2 C. KOH D. BaCl 2 Đáp án là: B. Ba(OH) 2 </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 3189, 30103, 29871, 29946, 270, 686, 652, 31214, 305, 29871, 30128, ...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Ở ruồi giấm cái, xét hai gen A và B cùng nằm trên 1 NST và cách nhau 58 cM. Theo lý thuyết, tần số hoán vị gen giữa hai gen là bao nhiêu? A. 58% B. 50% C. 8% D. 0% Đáp án là: B. 50% </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 438, 207, 158, 207, 140, 5796, 29877, 31500, 30712, 29875, 330, 423...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Trường hợp nào sau đây phương trình x^2-(m+1)x+m=0 (m là tham số) có hai nghiệm phân biệt? A. m < 1 B. m = 1 C. m > 1 D. m≠1 Đáp án là: D. m≠1 </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 1605, 30416, 30997, 865, 298, 31645, 29886, 302, 30001, 29877, 12507,...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Cho dãy các chất: axit fomic, metyl fomat, etanol, etanal, axit etanoic. Chất có nhiệt độ sôi cao nhất trong dãy là: A. etanol. B. etanal. C. metyl fomat. D. axit etanoic. Đáp án là: D. axit etanoic </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 14542, 1146, 30478, 29891, 5777, 30103, 29883, 10329, 31500, 30103, 2...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Đốt cháy hoàn toàn 3,7 gam este no đơn chức mạch hở, thu được 3,36 lít CO 2 (đktc). Số cấu tạo của este là A. 3. B. 2 C. 4. D. 1. Đáp án là: B. 2 </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 29871, 30250, 29877, 31500, 30103, 29873, 10329, 30103, 29891, 5089, ...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: _______, they decided not to go to Australia for their holidays but went to America instead. A. At the end B. At least C. In the end D. In the least Đáp án là: C. In the end </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 903, 7652, 1649, 29892, 896, 8459, 451, 304, 748, 304, 8314, 363, ...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Our school offers students a challenging and __________ environment to study. A. thrilling B. disappointing C. winning D. stimulating Đáp án là: D. stimulating </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 8680, 3762, 16688, 8041, 263, 18066, 292, 322, 903, 14365, 29918, 5...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Cho este đa chức X ( có công thức phân tử C 6 H 10 O 4 ) tác dụng với dung dịch NaOH, thu được sản phẩm gồm một muối của axit cacboxylic Y và một ancol Z. Biết X không có phản ứng tráng bạc. Số công thức cấu tạo thỏa mãn của X là A. 5. B. 3. C. 2. D. 4. Đáp án là: C. 2. </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 14542, 4404, 29871, 30128, 29874, 521, 29884, 207, 158, 30103, 29883,...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Thủy ph ân m gam este đơn chức, mạch hở X bằng dung dịch NaOH vừa đủ thu được n gam muối Y và 0,12 mol ancol metylic. Đốt cháy hoàn toàn Y cần vừa đủ 6,72 lít O 2 (đktc). Giá trị của m là A. 10,08 B. 11,76 C. 12,24 D. 12,00. Đáp án là: A. 10,08 </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 498, 29884, 207, 140, 29891, 1374, 263, 31500, 29876, 286, 24988, 4...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: She showed her _________ by asking lots of trivial questions. A. experience B. inexperience C. experienced D. inexperienced Đáp án là: B. inexperience </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 2296, 10018, 902, 903, 14365, 491, 6721, 14568, 310, 12604, 5155, 2...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Choose the letter A, B, C or D to answer these following questions Alligators have always been the most dangerous predators of the Florida Everglades, but their long-held position is now being challenged by a growing population of Burmese pythons. The Burmese python, a giant snake measuring up to 20 feet long and weighing up to 200 pounds, is very popular among exotic pet owners. However, as the dead snakes grow, they become more difficult to cage and handle. To avoid dealing with the snakes, the owners irresponsibly release them into the wild. Since the Everglades is quietly similar to the python's native environment of Southeast Asia, they survive and prosper without difficulty. The issue with the Burmese pythons is their choice of meals. They eat alligators and endangered birds, which creates strain on an already fragile ecosystem. Recently a 13-foot long Burmese python was found with a 5-foot alligator bursting from its stomach. The python died tried to eat the alligator but a larger one would have easily won the struggle. With over 30,000 Burmese pythons now living over the Everglades, a solution to stop this invasive species is necessary. If the pythons are left unchecked, there is a strong possibility they will wipe out a variety of species needed for the functioning of the Everglades ecosystem. Why do Burmese pythons develop and prosper in a simple and easy way? A. The Everglades and the python’s native environment of Southeast Asia have many things in common. B. The Everglades is an ideal place for Burmese pythons. C. Burmese pythons really like this new environment. D. Humans give them a lot of food. Đáp án là: A. The Everglades and the python’s native environment of Southeast Asia have many things in common. </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 14542, 852, 278, 5497, 319, 29892, 350, 29892, 315, 470, 360, 304, ...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Các số 5,7; 6,02; 4,23; 4,32; 5,3 được viết theo thứ tự từ bé đến lớn là: A. 5,7; 6,02; 4,23; 4,32; 5,3 B. 6,02; 5,7; 5,3; 4,32; 4,23 C. 4,23; 5,3; 5,7; 6,02; 4,32 D. 4,23; 4,32; 5,3; 5,7; 6,02 Đáp án là: D. 4,23; 4,32; 5,3; 5,7; 6,02 </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 315, 25968, 269, 30984, 29871, 29945, 29892, 29955, 29936, 29871, 299...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: The word “endemic” in paragraph 2 is closest in meaning to ______. A. local B. colonial C. foreign D. native Đáp án là: D. native </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 450, 1734, 1346, 264, 24552, 30024, 297, 14880, 29871, 29906, 338, ...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Đâu là năm sinh, năm mất của nhà văn Giuyn Véc-nơ? A. 1828 – 1905 B. 1928 – 2005 C. 1828 – 1904 D. 1928 – 2004 Đáp án là: A. 1828 – 1905 </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 29871, 30250, 29874, 31500, 29884, 425, 30712, 1055, 207, 137, 29885,...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: There/ many/ English/ speaking countries/ the world A. There are many English speaking countries on the world. B. There are many English speaking countries in the world. C. There are many English speaking countries at the world. D. There are many English speaking countries of the world. Đáp án là: A. There are many English speaking countries on the world. </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 1670, 29914, 1784, 29914, 4223, 29914, 13590, 10916, 29914, 278, 3186...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: tia không bị lệch trong điện trường là. A. Tia α và tia β B. Tia γ và tia β C. Tia γ và tia X D. Tia α, tia γ và tia β Đáp án là: C. Tia γ và tia X </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 260, 423, 413, 1251, 31500, 865, 4768, 31214, 454, 31214, 31500, 30...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Sự bắt tay giữa Pháp và Trung Hoa Dân quốc để chống phá cách mạng Việt Nam sau Cách mạng tháng Tám được đánh dấu bằng hiệp ước A. Thiên Tân. B. Hoa - Pháp. C. Nam Kinh. D. Pháp - Trung. Đáp án là: B. Hoa - Pháp. </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 2166, 207, 158, 31214, 9922, 207, 137, 30103, 29873, 260, 388, 4005...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Luận cương chính trị tháng 10-1930 của Đảng được thông qua khi nào? A. Đại hội lần thứ nhất của Đảng Cộng sản Đông Dương, tháng 3-1935. B. Đại hội lần thứ nhất của Đảng Cộng sản Đông Dương, tháng 10-1930. C. Hội nghị Ban Chấp hành Trung ương lâm thời của Đảng Cộng sản Việt Nam lần thứ I, tháng 10-1930. D. Hội nghị Ban Chấp hành Trung ương lâm thời của Đảng Cộng sản Việt Nam lần thứ II, tháng 10-1930. Đáp án là: C. Hội nghị Ban Chấp hành Trung ương lâm thời của Đảng Cộng sản Việt Nam lần thứ I, tháng 10-1930. </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 3182, 29874, 31214, 31500, 29876, 2723, 207, 158, 29877, 207, 158, ...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: A conductor uses signals and gestures to let the musicians to know when to play various parts of composition. A. the musicians B. to play C. uses D. to know Đáp án là: D. to know </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 319, 7512, 272, 3913, 18470, 322, 7737, 1973, 304, 1235, 278, 2301,...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Khối khí địa cực có tính chất nào sau đây A. Rất lạnh B. Lạnh C. Rất nóng D. Nóng, ẩm Đáp án là: A. Rất lạnh </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 476, 1251, 31500, 30103, 29875, 413, 2918, 30103, 29871, 30128, 29875...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Mô tả nào dưới đây không phù hợp với nhôm? A. Trong hợp chất, số oxi hóa của Al là +3. B. Cấu hình electron [Ne]3s 2 3p 1. C. Tinh thể cấu tạo lập phương tâm diện. D. Ở ô thứ 13, chu kì 2, nhóm IIIA. Đáp án là: D. Ở ô thứ 13, chu kì 2, nhóm IIIA </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 4546, 31500, 11062, 207, 140, 1055, 30712, 29877, 868, 207, 158, 29...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Ở một loài thú, tính trạng màu lông do một gen có 4 alen nằm trên nhiễm sắc thể thường quy định. Alen A 1 quy định lông đen trội hoàn toàn so với các alen A 2, A 3, A 4 ; Alen A 2 quy định lông xám trội hoàn toàn so với alen A 3, A 4 ; Alen A 3 quy định lông vàng trội hoàn toàn so với alen A 4 quy định lông trắng. Biết không xảy ra đột biến. Theo lí thuyết, có bao nhiêu phát biểu sau đây đúng? I. Thực hiện phép lai giữa hai cá thể khác nhau, thu được F 1. Nếu F 1 có 2 loại kiểu hình thì chỉ có 3 loại kiểu gen. II. Con đực lông đen giao phối với cá thể X, thu được F 1 có 3 loại kiểu gen. Sẽ có tối đa 3 sơ đồ lai cho kết quả như vậy. III. Cho 1 cá thể lông đen giao phối với 1 cá thể lông trắng, có thể thu được đời con có số cá thể lông vàng chiếm 25%. IV. Cho 1 cá thể lông đen giao phối với 1 cá thể lông vàng, thu được F 1. Nếu F 1 có tỉ lệ kiểu hình 1:1 thì chỉ có 3 sơ đồ lai cho kết quả như vậy. A. 3. B. 1. C. 2. D. 4. Đáp án là: B. 1. </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 438, 207, 158, 207, 140, 2730, 31214, 31500, 29873, 658, 29874, 307...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: The new appliance does not only work but also saves energy. A. effect B. effective C. effectively D. effectiveness Đáp án là: C. effectively </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 450, 716, 623, 13036, 947, 451, 871, 664, 541, 884, 27401, 5864, ...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Your sister seldom cooks meals, _________? A. did she B. didn’t she C. does she D. doesn’t she Đáp án là: C. does she </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 3575, 9883, 269, 2495, 290, 7984, 29879, 592, 1338, 29892, 903, 143...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Cho 13,65 gam hỗn hợp hai amin no đơn chức mạch hở tác dụng vừa đủ với 250ml dung dịch HCl 1M. Khối lượng muối khan thu được sau phản ứng là A. 22,630 gam B. 22,275 gam C. 22,775 gam. D. 22,525 gam. Đáp án là: C. 22,775 gam. </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 14542, 29871, 29896, 29941, 29892, 29953, 29945, 24988, 5089, 31500, ...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Choose the letter A, B, C or D to complete the sentences Which word has the opposite meaning to “weak”? A. strong B. light C. fat D. slim Đáp án là: A. strong </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 14542, 852, 278, 5497, 319, 29892, 350, 29892, 315, 470, 360, 304, ...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Chọn câu đúng: A. Nhiều vật sau khi bị cọ xát có khả năng làm cháy bóng đèn bút thử điện B. Nhiều vật sau khi bị cọ xát có khả năng làm sáng bóng đèn bút thử điện C. Nhiều vật sau khi bị cọ xát có khả năng làm tắt bóng đèn bút thử điện D. Cả A, B và C đều sai Đáp án là: B. Nhiều vật sau khi bị cọ xát có khả năng làm sáng bóng đèn bút thử điện </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 14542, 31214, 29876, 5777, 31500, 29884, 29871, 30128, 29884, 30103, ...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Định lí thường được phát biểu dưới dạng: A. Thì... là...; B. Do... nên..., C. Vì... nên...; D. Nếu... thì.... Đáp án là: D. Nếu </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 29871, 30250, 30740, 29876, 29882, 10263, 266, 30416, 30997, 865, 298...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Quá trình biến đổi lí học và hoá học của thức ăn diễn ra đồng thời ở bộ phận nào dưới đây? A. Khoang miệng B. Dạ dày C. Ruột non D. Tất cả các phương án Đáp án là: D. Tất cả các phương án </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 751, 29874, 30103, 3367, 30712, 29876, 29882, 289, 347, 31500, 30103,...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Cho các phát biểu sau : (a) Một số este có mùi thơm, không độc, được dùng trong công nghiệp thực phẩm và mĩ phẩm. (b) Nilon-6,6 được điều chế bằng phản ứng trùng ngưng. (c) Ở điều kiện thường, các amin đều là chất lỏng, rất độc. (d) Tinh bột là thực phẩm quan trọng cho người và động vật. (e) Dung dịch lòng trắng trứng tác dụng với Cu(OH)2 trong môi trường kiềm, tạo hợp chất màu xanh lam. (g) Chất béo là trieste của glixerol với axit béo, còn gọi là triaxylglyxerol. Trong các phát biểu trên, số phát biểu đúng là A. 3. B. 4. C. 5. D. 6. Đáp án là: B. 4. </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 14542, 5777, 30103, 29883, 1374, 29874, 30103, 29873, 289, 347, 31500...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Chọn câu đúng. A. Quang phổ liên tục của một vật phụ thuộc vào bản chất của vật nóng sáng. B. Quang phổ liên tục phụ thuộc vào nhiệt độ của vật nóng sáng. C. Quang phổ liên tục không phụ thuộc vào nhiệt độ của vật nóng sáng. D. Quang phổ liên tục phụ thuộc vào nhiệt độ và bản chất của vật nóng sáng. Đáp án là: B. Quang phổ liên tục phụ thuộc vào nhiệt độ của vật nóng sáng. </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 14542, 31214, 29876, 5777, 31500, 29884, 29871, 30128, 29884, 30103, ...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Điều không đúng về sự khác nhau giữa hoạt động của cơ tim với cơ vân là? A. Theo quy luật “tất cả hoặc không có gì” B. Tự động C. Theo chu kỳ D. Cần năng lượng Đáp án là: D. Cần năng lượng </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 29871, 30250, 347, 31500, 30712, 29884, 413, 1251, 31500, 865, 29871,...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: “Địa thế cao hai đầu, thấp ở giữa, chạy theo hướng tây bắc - đông nam”. Đó là đặc điểm của vùng núi nào sau đây? A. Trường Sơn Bắc. B. Trường Sơn Nam. C. Đông Bắc. D. Tây Bắc. Đáp án là: A. Trường Sơn Bắc. </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 1346, 30250, 29875, 31214, 29874, 278, 31500, 30103, 5777, 29877, 447...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Trong hệ tọa độ Oxy cho tam giác ABC có A (1; 1), B (-2; -2), C (7; 7) Khẳng định nào sau đây đúng? A. A, B, C thẳng hàng ; B. B ở giữa hai điểm A và C ; C. A ở giữa hai điểm B và C ; D. \[\overrightarrow {AB},{\rm{ }}\overrightarrow {AC} \] cùng hướng. Đáp án là: C. A ở giữa hai điểm B và C ; </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 1605, 549, 298, 30529, 260, 30975, 29874, 29871, 30128, 30902, 438, ...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: According to the passage, to avoid incidents of hay fever, patients need to________. A. avoid interactions with other patients B. avoid exposure to pollen C. increase their self-confidence D. take doses of prescribed medicine. Đáp án là: B. avoid exposure to pollen </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 7579, 304, 278, 13382, 29892, 304, 4772, 5528, 16719, 310, 14842, 1...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: (Sở GD – ĐT Bắc Ninh – lần 2 2019) : Một loài sinh vật có bộ NST lưỡng bội 2n = 24. Số loại thể ba tối đa có thể được hình thành ở loài sinh vật này là A. 25 B. 12 C. 36 D. 48 Đáp án là: B. 12 </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 313, 6295, 207, 158, 207, 140, 402, 29928, 785, 29871, 30250, 29911...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Số phức z=1/(1−i) có tổng phần thực và phần ảo bằng: A. 1; B. 0; C. 2; D. 3. Đáp án là: A. 1; </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 317, 30984, 1374, 31318, 29883, 503, 29922, 29896, 14571, 29896, 3012...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: It’s surprising how few people can... between margine and butter. A. distinguish B. seprate C. disgnose D. estimate Đáp án là: A. distinguish </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 739, 30010, 29879, 26800, 920, 2846, 2305, 508, 856, 1546, 15276, 4...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: - Tom: “How are you feeling today?” - Mary: “_________.” A. I’m sorry B. Thank you C. Not too bad D. Yes Đáp án là: C. Not too bad </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 448, 4335, 29901, 1346, 5328, 526, 366, 11223, 9826, 6677, 448, 618...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Trên trục số, điểm nào tạo với hai điểm – 1 và 3 bộ ba số cách đều nhau. A. – 5 B. 7 C. 1 D. Cả A, B và C Đáp án là: D. Cả A, B và C </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 1605, 5512, 534, 31620, 29883, 269, 30984, 29892, 29871, 30128, 29875...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best completes each of the following exchanges. “What can I do for you?” - “_______.” A. No need to help. B. Thank you. C. Thanks, I’m just looking. D. Sorry for not buying anything. Đáp án là: C. Thanks, I’m just looking. </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 4485, 278, 5497, 319, 29892, 350, 29892, 315, 29892, 470, 360, 373,...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Ở nhiều đảo đá tại vịnh Hạ Long thường gặp những vết lõm sâu chảy dài trên vách đá đánh dấu nước biển ở những thời kỳ địa chất xa xôi đó là dấu vết của A. vận động nâng lên, hạ xuống. B. hiện tượng uốn xếp. C. hiện tượng đứt gãy. D. các trận động đất. Đáp án là: A. vận động nâng lên, hạ xuống. </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 438, 207, 158, 207, 140, 302, 29882, 347, 31500, 30712, 29884, 2987...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Hiđro có nguyên tử khối là 1,008. Hỏi có bao nhiêu nguyên tử của đồng vị H 2 trong 10 ml nước (biết trong nước chỉ có đồng vị H 1 và H 2 ; khối lượng riêng của nước là 1 g/ml). A. 5, 35.10 20 B. 5, 35.10 21 C. 5, 35.10 22 D. 5, 35.10 23 Đáp án là: B. 5, 35.10 21 </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 6324, 30128, 307, 1302, 30103, 302, 2543, 4099, 31500, 29876, 5291, ...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: If you look down or to the side when you are talking, it might (363) ______ that you are not honest. A. seem B. become C. turn D. come Đáp án là: A. seem </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 960, 366, 1106, 1623, 470, 304, 278, 2625, 746, 366, 526, 9963, 2...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the other three in the position of primary stress in each of the following questions. A. household B. concern C. garbage D. conflict Đáp án là: B. concern </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 4485, 278, 5497, 319, 29892, 350, 29892, 315, 29892, 470, 360, 373,...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Cho 82,05 gam hỗn hợp A gồm Al và Al 2 O 3 (có tỷ lệ mol là 2,3:1) tan hoàn toàn trong dung dịch B chứa H 2 SO 4 và NaNO 3 thu được dung dịch C chỉ chứa 3 muối và m gam hỗn hợp khí D (trong D có 0,2 mol khí H 2 ). Cho BaCl 2 dư vào C thấy có 838,8 gam kết tủa xuất hiện. Mặt khác cho 23 gam Na vào dung dịch C sau khi các phản ứng xảy ra thì thấy khối lượng dung dịch giảm 3,1 gam và không còn muối amoni. Giá trị m gần nhất với A. 12 B. 13 C. 15 D. 16 Đáp án là: A. 12 </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 14542, 29871, 29947, 29906, 29892, 29900, 29945, 24988, 5089, 31500, ...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
<s> Chọn đáp án đúng với câu hỏi: Cây trồng nào sau đây chiếm tỉ trọng cao nhất trong cơ cấu giá trị sản xuất ngành trồng trọt của nước ta? A. Cây ăn quả và rau đậu. B. Cây lương thực. C. Cây hoa màu. D. Cây công nghiệp. Đáp án là: B. Cây lương thực. </s>	[ 1, 1, 29871, 678, 30975, 29876, 29871, 30128, 29976, 29886, 29871, 1715, 29871, 30128, 30030, 865, 325, 31280, 29875, 274, 30057, 29884, 298, 228, 190, 146, 29875, 29901, 9243, 31500, 29891, 3147, 31500, 30712, 865, 1055, 30712, 29877, 1250...	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...

<s> Chọn đáp án đúng với câu hỏi: She tried very hard to pass the driving test. She could hardly pass it. A. Although she didn’t try hard to pass the driving test, she could pass it. B. Despite being able to pass the driving test, she didn’t pass it. C. No matter how hard she tried, she could hardly pass the driving test. D. She tried very hard, so she passed the driving test satisfactorily. Đáp án là: C. No matter how hard she tried, she could hardly pass the driving test. </s>

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<s> Chọn đáp án đúng với câu hỏi: Trong tự nhiên đồng có 2 đồng vị là 63 Cu và 65 Cu, t rong đó tỉ lệ số nguyên tử 63 Cu : 65 Cu = 81 : 219. Nếu hoàn tan một miếng đồng nặng 19,062 gam bằng dung dịch HNO 3 loãng thì thể tích khí NO (đktc) thu được là: (3Cu + 8HNO 3 → 3Cu(NO 3 ) 2 + 2NO + 4H 2 O) A. 2,24. B. 3,36. C. 4,48. D. 6,72. Đáp án là: C. 4,48. </s>

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<s> Chọn đáp án đúng với câu hỏi: Cơ cấu nền kinh tế bao gồm A. cơ cấu lao động, cơ cấu lãnh thổ, cơ cấu thành phần kinh tế. B. cơ cấu nông - lâm - ngư nghiệp, công nghiệp - xây dựng, dịch vụ. C. cơ cấu ngành kinh tế, cơ cấu thành phần kinh tế, cơ cấu lãnh thổ. D. cơ cấu kinh tế trong nước, cơ cấu kinh tế có vốn đầu tư nước ngoài. Đáp án là: C. cơ cấu ngành kinh tế, cơ cấu thành phần kinh tế, cơ cấu lãnh thổ. </s>

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<s> Chọn đáp án đúng với câu hỏi: Hai tấm kim loại song song, cách nhau 2 (cm) và được nhiễm điện trái dấu nhau. Muốn làm cho điện tích q = 5.10 - 10 (C) di chuyển từ tấm này đến tấm kia cần tốn một công A = 2.10 - 9 10 - 7 (J). Coi điện trường bên trong khoảng giữa hai tấm kim loại là điện trường đều và có các đường sức điện vuông góc với các tấm. Cường độ điện trường bên trong tấm kim loại đó là: A. E = 2 (V/m). B. E = 40 (V/m). C. E = 200 (V/m). D. E = 400 (V/m). Đáp án là: C. E = 200 (V/m). </s>

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<s> Chọn đáp án đúng với câu hỏi: Nhận định nào dưới đây không phải vấn đề xã hội khiến các nước ASEAN phải quan tâm? A. Vấn đề tôn giáo, sự hòa hợp giữa các dân tộc. B. Thất nghiệp, đào tạo nguồn lực. C. Sử dụng tài nguyên và bảo vệ môi trường. D. GDP có sự chênh lệch lớn giữa các quốc gia. Đáp án là: D. GDP có sự chênh lệch lớn giữa các quốc gia </s>

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<s> Chọn đáp án đúng với câu hỏi: Đông Nam Á có vị trí địa - chính trị rất quan trọng vì A. Khu vực này tập trung rất nhiều loại khoáng sản. B. Là nơi đông dân nhất thế giới, tập trung nhiều thành phần dân tộc. C. Nền kinh tế phát triển mạnh và đang trong quá trình công nghiệp hóa, hiện đại hóa. D. Là nơi tiếp giáp giữa hai đại dương, vị trí cầu nối giữa hai châu lục và có nền kinh tế phát triển năng động. Đáp án là: D. Là nơi tiếp giáp giữa hai đại dương, vị trí cầu nối giữa hai châu lục và có nền kinh tế phát triển năng động </s>

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<s> Chọn đáp án đúng với câu hỏi: Nhân tố quan trọng hàng đầu trong việc hình thành và phát triển nền văn minh Đại Việt là A. tiền đề từ các nền văn minh cổ trên đất nước ta. B. sự du nhập của các thành tựu văn minh bên ngoài. C. nền độc lập, tự chủ của quốc gia Đại Việt. D. sự giao lưu và tiếp biến với văn hóa Trung Quốc. Đáp án là: C. nền độc lập, tự chủ của quốc gia Đại Việt. </s>

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<s> Chọn đáp án đúng với câu hỏi: Hạn chế lớn nhất làm mục tiêu của cuộc tổng công kích, tổng nổi dậy Tết Mậu Thân 1968 không đạt được là gì? A. Ta chủ quan trong việc đánh giá cao lực ỉượng của mình, đánh giá thấp lực lượng địch. B. Do tư tưởng nóng vội, muốn giành thắng lợi lớn, kết thúc nhanh chiến tranh. C. Chỉ đạo không chủ động, kịp thời điều chỉnh kế hoạch rút khỏi thành phố sau đợt I. D. Lực lượng của địch còn đông, cơ sở ở thành thị còn mạnh. Đáp án là: A. Ta chủ quan trong việc đánh giá cao lực ỉượng của mình, đánh giá thấp lực lượng địch. </s>

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<s> Chọn đáp án đúng với câu hỏi: Tách ra một chùm hẹp ánh sáng Mặt Trời cho rọi xuống mặt nước của một bể bơi. Chùm sáng này đi vào trong nước tạo ra ở đáy bể một dải sáng có màu từ đỏ đến tím. Đây là hiện tượng A. giao thoa ánh sáng B. nhiễu xạ ánh sáng C. tán sắc ánh sáng D. phản xạ ánh sáng Đáp án là: C. tán sắc ánh sáng </s>

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<s> Chọn đáp án đúng với câu hỏi: Một loại nước cứng có chứa các ion : Ca 2+, Mg 2+, Cl −, HCO 3 − ; trong đó nồng độ của Cl − là 0,006M và HCO 3 − là 0,01M. Hãy cho biết cần lấy bao nhiêu ml dung dịch Na 2 CO 3 0,2 M để biến 1 lít nước cứng đó thành nước mềm? (coi như các chất kết tủa hoàn toàn). A. 20 ml. B. 80 ml. C. 60 ml. D. 40 ml Đáp án là: D. 40 ml </s>

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<s> Chọn đáp án đúng với câu hỏi: Phát biểu nào sau đây là sai? A. Liên kết hóa học chủ yếu trong hợp chất hữu cơ là liên kết cộng hóa trị. B. Các chất có cấu tạo và tính chất tương tự nhau nhưng về thành phần phân tử khác nhau một hay nhiều nhóm CH 2 là đồng đẳng của nhau. C. Các chất có cùng khối lượng phân tử là đồng phân của nhau. D. Liên kết ba gồm hai liên kết p và một liên kết s. Đáp án là: C. Các chất có cùng khối lượng phân tử là đồng phân của nhau. </s>

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<s> Chọn đáp án đúng với câu hỏi: If we leave here now, we can drive half the distance before we stop _________ lunch. A. for having B. having had C. having D. to have Đáp án là: D. to have </s>

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<s> Chọn đáp án đúng với câu hỏi: Khi cho từ từ dung dịch HCl vào dung dịch Na 2 CO 3 khuấy đều, hiện tượng xảy ra là A. Xuất hiện chất khí bay ra ngay khi cho HCl vào B. Sau 1 thời gian thấy xuất hiện chất khí bay ra, dung dịch trong suốt C. Không có khí thoát ra D. Có khí thoát ra và xuất hiện kết tủa Đáp án là: B. Sau 1 thời gian thấy xuất hiện chất khí bay ra, dung dịch trong suốt </s>

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<s> Chọn đáp án đúng với câu hỏi: Một loài thực vật có bộ NST lưỡng bội là 2n = 24. Có 5 tế bào đang tiến hành quá trình phân bào nguyên phân 3 lần liên tiếp. Tổng số NST kép ở kì đầu của lần nguyên phân cuối cùng là bao nhiêu? A. 24 NST đơn B. 24 NST kép C. 24 NST đơn D. 48 NST kép Đáp án là: C. 24 NST đơn </s>

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<s> Chọn đáp án đúng với câu hỏi: Biết rằng đồ thị hàm số y=(√(3x+1)+ax+b)/((x−1)^2) không có tiệm cận đứng. Giá trị ab bằng A. -2 B. 2 C. 15/16 D. (-15)/16 Đáp án là: C. 15/16 </s>

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<s> Chọn đáp án đúng với câu hỏi: Choose the word whose stress pattern is different from the rest A. expectation B. temperament C. opportunity D. decoration Đáp án là: B. temperament </s>

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<s> Chọn đáp án đúng với câu hỏi: _______ appear, they are really much larger than the Earth. A. Small as the stars B. The stars as small C. As the small stars D. Despite of the small stars Đáp án là: A. Small as the stars </s>

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<s> Chọn đáp án đúng với câu hỏi: The word " congested " in paragraph 1 could best be replaced by A. hazardous B. polluted C. crowded D. rushed Đáp án là: C. crowded </s>

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<s> Chọn đáp án đúng với câu hỏi: Bài học chủ yếu nào có thể rút ra cho cách mạng Việt Nam từ sự chia rẽ của ba tổ chức cộng sản năm 1929? A. Xây dựng khối đoàn kết trong Đảng. B. Thống nhất trong lực lượng lãnh đạo. C. Xây dựng khối liên minh công nông vững chắc. D. Thống nhất về tư tưởng chính trị. Đáp án là: A. Xây dựng khối đoàn kết trong Đảng. </s>

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<s> Chọn đáp án đúng với câu hỏi: Chiến thắng nào đã đè bẹp ý chí xâm lược của quân Minh, buộc Vương Thông phải giảng hòa, kết thúc chiến tranh? A. Tân Bình, Thuận Hóa B. Tốt Động, Chúc Động C. Chi Lăng- Xương Giang D. Ngọc Hồi- Đống Đa Đáp án là: C. Chi Lăng- Xương Giang </s>

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<s> Chọn đáp án đúng với câu hỏi: Hiện nay, siêu đô thị tập trung nhiều nhất ở châu lục nào? A. Châu Âu. B. Châu Phi. C. Châu Á. D. Châu Đại Dương. Đáp án là: C. Châu Á. </s>

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<s> Chọn đáp án đúng với câu hỏi: Nội dung nào không phản ánh đúng nguyên nhân ở vùng Địa Trung Hải chỉ có thể hình thành các thị quốc nhỏ? A. Ở vùng ven bờ Bắc biển Địa Trung Hải có nhiều đồi núi chia cắt đất đai B. Địa hình chia cắt nên không có điều kiện để tập trung dân cư C. Không có thị quốc đủ lớn mạnh để chinh phục được các thị quốc khác trong vùng D. Cư dân sống thiên về nghề buôn và nghề thủ công, không cần sự tập trung đông đúc Đáp án là: C. Không có thị quốc đủ lớn mạnh để chinh phục được các thị quốc khác trong vùng </s>

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<s> Chọn đáp án đúng với câu hỏi: Cuộc khủng hoảng kinh tế 1929 – 1933 ở Mỹ bắt đầu từ ngành nào? A. Nông nghiệp. B. Công nghiệp. C. Tài chính ngân hàng. D. Năng lượng. Đáp án là: C. Tài chính ngân hàng. </s>

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<s> Chọn đáp án đúng với câu hỏi: Cho các thí nghiệm sau: (1) sục khí H 2 S vào dung dịch FeSO 4 ; (2) cho dung dịch K 2 SO 4 vào dung dịch BaCl 2 ; (3) sục khí H 2 S vào dung dịch CuSO 4 ; (4) sục khí CO 2 vào dung dịch Na 2 SiO 3 ; (5) sục khí CO 2 (dư) vào dung dịch Ca(OH) 2 ; (6) cho dung dịch NH 3 (dư) vào dung dịch AlCl 3. Thí nghiệm thu được kết tủa là A. (1),(2),(3),(4) B. (2),(3),(5),(6) C. (2),(3),(4),(6) D. (1),(3),(5),(6) Đáp án là: C. (2),(3),(4),(6) </s>

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<s> Chọn đáp án đúng với câu hỏi: Cách mạng công nghiệp thế kỉ XVIII diễn ra đầu tiên ở A. Đức. B. Anh. C. Pháp. D. Mĩ. Đáp án là: B. Anh. </s>

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<s> Chọn đáp án đúng với câu hỏi: Trong các kiểu gen dưới đây, kiểu gen nào giảm phân bình thường chỉ cho một loại giao tử? A. Aabb B. AABb C. aaBB D. AaBb Đáp án là: C. aaBB </s>

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<s> Chọn đáp án đúng với câu hỏi: Để giải một bài tập cần phải giải hai bài tập. Bài tập 1 có 9 cách giải, bài tập 2 có 5 cách giải. Số các cách để hoàn thành bài tập trên là : A. 3; B. 45; C. 5; D. 12. Đáp án là: B. 45; </s>

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<s> Chọn đáp án đúng với câu hỏi: Một vật nhỏ dao động điều hòa theo một trục cố định. Phát biểu nào sau đây đúng? A. Quỹ đạo chuyển động của vật là một đường thẳng. B. Lực kéo về tác dụng vào vật không đổi. C. Li độ của vật tỉ lệ với thời gian dao động. D. Quỹ đạo chuyển động của vật là một đường hình sin. Đáp án là: A. Quỹ đạo chuyển động của vật là một đường thẳng. </s>

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<s> Chọn đáp án đúng với câu hỏi: Phương trình cot(45°−x)=(√(3))/3 có họ nghiệm là A. x=−15°+k360°. B. x=165°+k360°. C. x=−15°+k180°. D. x=45°+k360°. Đáp án là: C. x=−15°+k180°. </s>

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<s> Chọn đáp án đúng với câu hỏi: Một vật nhỏ có chuyển động là tổng hợp của hai dao động điều hòa cùng phương. Hai dao động này có phương trình là x 1 = A 1 cos ω t v à x 2 = A 2 cos ω t + π 2. Gọi E là cơ năng của vật. Khối lượng của vật bằng A. E ω 2 A 1 2 + A 2 2 B. 2 E ω 2 A 1 2 + A 2 2 C. E ω 2 A 1 2 + A 2 2 D. 2 E ω 2 A 1 2 + A 2 2 Đáp án là: D. 2 E ω 2 A 1 2 + A 2 2 </s>

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<s> Chọn đáp án đúng với câu hỏi: Gen là gì? A. Nhân tố di truyền B. Một đoạn của phân tử ADN C. Là NST D. Một đoạn của phân tử ARN Đáp án là: B. Một đoạn của phân tử ADN </s>

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<s> Chọn đáp án đúng với câu hỏi: Nhận định nào sau đây không đúng với hiện trạng sử dụng tài nguyên đất ở nước ta hiện nay? A. Diện tích đất trống, đồi núi trọc giảm mạnh. B. Diện tích đất đai bị suy thoái chỉ còn không đáng kể. C. Phần lớn diện tích đất đai bị đe dọa hoang mạc hóa. D. Xâm thực, xói mòn đất diễn ra nhiều nơi ở vùng đồi núi. Đáp án là: B. Diện tích đất đai bị suy thoái chỉ còn không đáng kể. </s>

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<s> Chọn đáp án đúng với câu hỏi: Chỉ ra công thức đúng của định luật Cu – lông trong chân không A. F = k. q 1 q 2 r 2. B. F = k. q 1 q 2 r. C. F = k q 1 q 2 r. D. F = q 1 q 2 k r Đáp án là: A. F = k. q 1 q 2 r 2. </s>

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<s> Chọn đáp án đúng với câu hỏi: Văn học Việt Nam từ thế kỉ X đến hết thế kỉ XIX (văn học trung đại) gồm những thành phần văn học: A. Văn học chữ Hán. B. Văn học chữ Nôm. C. Văn học chữ Hán và văn học chữ Nôm. D. Văn học chữ quốc ngữ. Đáp án là: C. Văn học chữ Hán và văn học chữ Nôm. </s>

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<s> Chọn đáp án đúng với câu hỏi: Let’s ask our teacher how to solve this problem _________ we can’t agree on the answer. A. Since B. because of C. due to D. owing to Đáp án là: A. Since </s>

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<s> Chọn đáp án đúng với câu hỏi: Trong công thức hóa học của hiđrô sunfua H 2 S và khí sunfurơ S O 2, hóa trị của lưu huỳnh lần lượt là: A. I và II B. II và IV C. II và VI D. IV và VI Đáp án là: B. II và IV </s>

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<s> Chọn đáp án đúng với câu hỏi: Tính thể tích khối trụ có bán kính R = 3, chiều cao h = 5 A. V = 45π B. V = 45 C. V = 15π D. V = 90π Đáp án là: A. V = 45π </s>

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<s> Chọn đáp án đúng với câu hỏi: Hai điểm M và M' phân biệt và đối xứng nhau qua mặt phẳng (Oxyz). Phát biểu nào sau đây là đúng? A. Hai điểm M và M' có cùng tung độ và cao độ. B. Hai điểm M và M' có cùng hoành độ và cao độ. C. Hai điểm M và M' có hoành độ đối nhau. D. Hai điểm M và M' có cùng hoành độ và tung độ. Đáp án là: D. Hai điểm M và M' có cùng hoành độ và tung độ </s>

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<s> Chọn đáp án đúng với câu hỏi: Dung dịch chất nào sau đây làm quỳ tím chuyển thành màu hồng? A. axit α-aminoglutaric B. Axit α,ε-điaminocaproic C. Axit α-aminopropionic D. Axit aminoaxetic Đáp án là: A. axit α-aminoglutaric </s>

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<s> Chọn đáp án đúng với câu hỏi: Centuries ago, news was obtained either by word of mouth, with town criers (53)...............citizens of news and bylaws, or from print, with notices posted on doors of local inn. A. explaining B. informing C. noting D. communicating Đáp án là: B. informing </s>

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<s> Chọn đáp án đúng với câu hỏi: Các tỉ số nào sau đây lập thành một tỉ lệ thức? A. $\frac{5}{7}:\frac{-3}{14}$ và $\frac{-1}{14}:\frac{3}{10}$; B. $\frac{2}{-5}$ và$\frac{-6}{12}$; C. (−3) : 7 và 6 : (−7); D. $(-1):\frac{2}{5}$ và $\frac{-5}{3}:\frac{4}{6}$. Đáp án là: D. $(-1):\frac{2}{5}$ và $\frac{-5}{3}:\frac{4}{6}$ </s>

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<s> Chọn đáp án đúng với câu hỏi: Đâu không phải là sáng tác của Trịnh Xuân Thuận? A. Tôi đã trở về trên núi cao B. Giai điệu bí ẩn C. Trò chuyện với Trịnh Xuân Thuận D. Hỗn độn và hài hòa Đáp án là: A. Tôi đã trở về trên núi cao </s>

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<s> Chọn đáp án đúng với câu hỏi: Có 4 dung dịch đựng trong 4 lọ mất nhãn là: (NH 4 ) 2 SO 4, NH 4 Cl, Na 2 SO 4, NaOH. Nếu chỉ được phép sử dụng một thuốc thử để nhận biết 4 dung dịch trên, có thể dùng dung dịch: A. AgNO 3 B. Ba(OH) 2 C. KOH D. BaCl 2 Đáp án là: B. Ba(OH) 2 </s>

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<s> Chọn đáp án đúng với câu hỏi: Ở ruồi giấm cái, xét hai gen A và B cùng nằm trên 1 NST và cách nhau 58 cM. Theo lý thuyết, tần số hoán vị gen giữa hai gen là bao nhiêu? A. 58% B. 50% C. 8% D. 0% Đáp án là: B. 50% </s>

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<s> Chọn đáp án đúng với câu hỏi: Trường hợp nào sau đây phương trình x^2-(m+1)x+m=0 (m là tham số) có hai nghiệm phân biệt? A. m < 1 B. m = 1 C. m > 1 D. m≠1 Đáp án là: D. m≠1 </s>

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<s> Chọn đáp án đúng với câu hỏi: Cho dãy các chất: axit fomic, metyl fomat, etanol, etanal, axit etanoic. Chất có nhiệt độ sôi cao nhất trong dãy là: A. etanol. B. etanal. C. metyl fomat. D. axit etanoic. Đáp án là: D. axit etanoic </s>

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<s> Chọn đáp án đúng với câu hỏi: _______, they decided not to go to Australia for their holidays but went to America instead. A. At the end B. At least C. In the end D. In the least Đáp án là: C. In the end </s>

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<s> Chọn đáp án đúng với câu hỏi: Our school offers students a challenging and __________ environment to study. A. thrilling B. disappointing C. winning D. stimulating Đáp án là: D. stimulating </s>

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<s> Chọn đáp án đúng với câu hỏi: Cho este đa chức X ( có công thức phân tử C 6 H 10 O 4 ) tác dụng với dung dịch NaOH, thu được sản phẩm gồm một muối của axit cacboxylic Y và một ancol Z. Biết X không có phản ứng tráng bạc. Số công thức cấu tạo thỏa mãn của X là A. 5. B. 3. C. 2. D. 4. Đáp án là: C. 2. </s>

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<s> Chọn đáp án đúng với câu hỏi: Thủy ph ân m gam este đơn chức, mạch hở X bằng dung dịch NaOH vừa đủ thu được n gam muối Y và 0,12 mol ancol metylic. Đốt cháy hoàn toàn Y cần vừa đủ 6,72 lít O 2 (đktc). Giá trị của m là A. 10,08 B. 11,76 C. 12,24 D. 12,00. Đáp án là: A. 10,08 </s>

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<s> Chọn đáp án đúng với câu hỏi: She showed her _________ by asking lots of trivial questions. A. experience B. inexperience C. experienced D. inexperienced Đáp án là: B. inexperience </s>

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<s> Chọn đáp án đúng với câu hỏi: Choose the letter A, B, C or D to answer these following questions Alligators have always been the most dangerous predators of the Florida Everglades, but their long-held position is now being challenged by a growing population of Burmese pythons. The Burmese python, a giant snake measuring up to 20 feet long and weighing up to 200 pounds, is very popular among exotic pet owners. However, as the dead snakes grow, they become more difficult to cage and handle. To avoid dealing with the snakes, the owners irresponsibly release them into the wild. Since the Everglades is quietly similar to the python's native environment of Southeast Asia, they survive and prosper without difficulty. The issue with the Burmese pythons is their choice of meals. They eat alligators and endangered birds, which creates strain on an already fragile ecosystem. Recently a 13-foot long Burmese python was found with a 5-foot alligator bursting from its stomach. The python died tried to eat the alligator but a larger one would have easily won the struggle. With over 30,000 Burmese pythons now living over the Everglades, a solution to stop this invasive species is necessary. If the pythons are left unchecked, there is a strong possibility they will wipe out a variety of species needed for the functioning of the Everglades ecosystem. Why do Burmese pythons develop and prosper in a simple and easy way? A. The Everglades and the python’s native environment of Southeast Asia have many things in common. B. The Everglades is an ideal place for Burmese pythons. C. Burmese pythons really like this new environment. D. Humans give them a lot of food. Đáp án là: A. The Everglades and the python’s native environment of Southeast Asia have many things in common. </s>

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<s> Chọn đáp án đúng với câu hỏi: The word “endemic” in paragraph 2 is closest in meaning to ______. A. local B. colonial C. foreign D. native Đáp án là: D. native </s>

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<s> Chọn đáp án đúng với câu hỏi: Đâu là năm sinh, năm mất của nhà văn Giuyn Véc-nơ? A. 1828 – 1905 B. 1928 – 2005 C. 1828 – 1904 D. 1928 – 2004 Đáp án là: A. 1828 – 1905 </s>

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<s> Chọn đáp án đúng với câu hỏi: There/ many/ English/ speaking countries/ the world A. There are many English speaking countries on the world. B. There are many English speaking countries in the world. C. There are many English speaking countries at the world. D. There are many English speaking countries of the world. Đáp án là: A. There are many English speaking countries on the world. </s>

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<s> Chọn đáp án đúng với câu hỏi: tia không bị lệch trong điện trường là. A. Tia α và tia β B. Tia γ và tia β C. Tia γ và tia X D. Tia α, tia γ và tia β Đáp án là: C. Tia γ và tia X </s>

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<s> Chọn đáp án đúng với câu hỏi: Sự bắt tay giữa Pháp và Trung Hoa Dân quốc để chống phá cách mạng Việt Nam sau Cách mạng tháng Tám được đánh dấu bằng hiệp ước A. Thiên Tân. B. Hoa - Pháp. C. Nam Kinh. D. Pháp - Trung. Đáp án là: B. Hoa - Pháp. </s>

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<s> Chọn đáp án đúng với câu hỏi: Luận cương chính trị tháng 10-1930 của Đảng được thông qua khi nào? A. Đại hội lần thứ nhất của Đảng Cộng sản Đông Dương, tháng 3-1935. B. Đại hội lần thứ nhất của Đảng Cộng sản Đông Dương, tháng 10-1930. C. Hội nghị Ban Chấp hành Trung ương lâm thời của Đảng Cộng sản Việt Nam lần thứ I, tháng 10-1930. D. Hội nghị Ban Chấp hành Trung ương lâm thời của Đảng Cộng sản Việt Nam lần thứ II, tháng 10-1930. Đáp án là: C. Hội nghị Ban Chấp hành Trung ương lâm thời của Đảng Cộng sản Việt Nam lần thứ I, tháng 10-1930. </s>

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<s> Chọn đáp án đúng với câu hỏi: A conductor uses signals and gestures to let the musicians to know when to play various parts of composition. A. the musicians B. to play C. uses D. to know Đáp án là: D. to know </s>

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<s> Chọn đáp án đúng với câu hỏi: Mô tả nào dưới đây không phù hợp với nhôm? A. Trong hợp chất, số oxi hóa của Al là +3. B. Cấu hình electron [Ne]3s 2 3p 1. C. Tinh thể cấu tạo lập phương tâm diện. D. Ở ô thứ 13, chu kì 2, nhóm IIIA. Đáp án là: D. Ở ô thứ 13, chu kì 2, nhóm IIIA </s>

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<s> Chọn đáp án đúng với câu hỏi: Ở một loài thú, tính trạng màu lông do một gen có 4 alen nằm trên nhiễm sắc thể thường quy định. Alen A 1 quy định lông đen trội hoàn toàn so với các alen A 2, A 3, A 4 ; Alen A 2 quy định lông xám trội hoàn toàn so với alen A 3, A 4 ; Alen A 3 quy định lông vàng trội hoàn toàn so với alen A 4 quy định lông trắng. Biết không xảy ra đột biến. Theo lí thuyết, có bao nhiêu phát biểu sau đây đúng? I. Thực hiện phép lai giữa hai cá thể khác nhau, thu được F 1. Nếu F 1 có 2 loại kiểu hình thì chỉ có 3 loại kiểu gen. II. Con đực lông đen giao phối với cá thể X, thu được F 1 có 3 loại kiểu gen. Sẽ có tối đa 3 sơ đồ lai cho kết quả như vậy. III. Cho 1 cá thể lông đen giao phối với 1 cá thể lông trắng, có thể thu được đời con có số cá thể lông vàng chiếm 25%. IV. Cho 1 cá thể lông đen giao phối với 1 cá thể lông vàng, thu được F 1. Nếu F 1 có tỉ lệ kiểu hình 1:1 thì chỉ có 3 sơ đồ lai cho kết quả như vậy. A. 3. B. 1. C. 2. D. 4. Đáp án là: B. 1. </s>

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<s> Chọn đáp án đúng với câu hỏi: The new appliance does not only work but also saves energy. A. effect B. effective C. effectively D. effectiveness Đáp án là: C. effectively </s>

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<s> Chọn đáp án đúng với câu hỏi: Your sister seldom cooks meals, _________? A. did she B. didn’t she C. does she D. doesn’t she Đáp án là: C. does she </s>

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<s> Chọn đáp án đúng với câu hỏi: Choose the letter A, B, C or D to complete the sentences Which word has the opposite meaning to “weak”? A. strong B. light C. fat D. slim Đáp án là: A. strong </s>

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<s> Chọn đáp án đúng với câu hỏi: Định lí thường được phát biểu dưới dạng: A. Thì... là...; B. Do... nên..., C. Vì... nên...; D. Nếu... thì.... Đáp án là: D. Nếu </s>

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<s> Chọn đáp án đúng với câu hỏi: Quá trình biến đổi lí học và hoá học của thức ăn diễn ra đồng thời ở bộ phận nào dưới đây? A. Khoang miệng B. Dạ dày C. Ruột non D. Tất cả các phương án Đáp án là: D. Tất cả các phương án </s>

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<s> Chọn đáp án đúng với câu hỏi: Cho các phát biểu sau : (a) Một số este có mùi thơm, không độc, được dùng trong công nghiệp thực phẩm và mĩ phẩm. (b) Nilon-6,6 được điều chế bằng phản ứng trùng ngưng. (c) Ở điều kiện thường, các amin đều là chất lỏng, rất độc. (d) Tinh bột là thực phẩm quan trọng cho người và động vật. (e) Dung dịch lòng trắng trứng tác dụng với Cu(OH)2 trong môi trường kiềm, tạo hợp chất màu xanh lam. (g) Chất béo là trieste của glixerol với axit béo, còn gọi là triaxylglyxerol. Trong các phát biểu trên, số phát biểu đúng là A. 3. B. 4. C. 5. D. 6. Đáp án là: B. 4. </s>

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<s> Chọn đáp án đúng với câu hỏi: Chọn câu đúng. A. Quang phổ liên tục của một vật phụ thuộc vào bản chất của vật nóng sáng. B. Quang phổ liên tục phụ thuộc vào nhiệt độ của vật nóng sáng. C. Quang phổ liên tục không phụ thuộc vào nhiệt độ của vật nóng sáng. D. Quang phổ liên tục phụ thuộc vào nhiệt độ và bản chất của vật nóng sáng. Đáp án là: B. Quang phổ liên tục phụ thuộc vào nhiệt độ của vật nóng sáng. </s>

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<s> Chọn đáp án đúng với câu hỏi: Trong hệ tọa độ Oxy cho tam giác ABC có A (1; 1), B (-2; -2), C (7; 7) Khẳng định nào sau đây đúng? A. A, B, C thẳng hàng ; B. B ở giữa hai điểm A và C ; C. A ở giữa hai điểm B và C ; D. \[\overrightarrow {AB},{\rm{ }}\overrightarrow {AC} \] cùng hướng. Đáp án là: C. A ở giữa hai điểm B và C ; </s>

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<s> Chọn đáp án đúng với câu hỏi: According to the passage, to avoid incidents of hay fever, patients need to________. A. avoid interactions with other patients B. avoid exposure to pollen C. increase their self-confidence D. take doses of prescribed medicine. Đáp án là: B. avoid exposure to pollen </s>

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<s> Chọn đáp án đúng với câu hỏi: It’s surprising how few people can... between margine and butter. A. distinguish B. seprate C. disgnose D. estimate Đáp án là: A. distinguish </s>

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<s> Chọn đáp án đúng với câu hỏi: - Tom: “How are you feeling today?” - Mary: “_________.” A. I’m sorry B. Thank you C. Not too bad D. Yes Đáp án là: C. Not too bad </s>

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<s> Chọn đáp án đúng với câu hỏi: Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best completes each of the following exchanges. “What can I do for you?” - “_______.” A. No need to help. B. Thank you. C. Thanks, I’m just looking. D. Sorry for not buying anything. Đáp án là: C. Thanks, I’m just looking. </s>

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<s> Chọn đáp án đúng với câu hỏi: Hiđro có nguyên tử khối là 1,008. Hỏi có bao nhiêu nguyên tử của đồng vị H 2 trong 10 ml nước (biết trong nước chỉ có đồng vị H 1 và H 2 ; khối lượng riêng của nước là 1 g/ml). A. 5, 35.10 20 B. 5, 35.10 21 C. 5, 35.10 22 D. 5, 35.10 23 Đáp án là: B. 5, 35.10 21 </s>

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<s> Chọn đáp án đúng với câu hỏi: If you look down or to the side when you are talking, it might (363) ______ that you are not honest. A. seem B. become C. turn D. come Đáp án là: A. seem </s>

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<s> Chọn đáp án đúng với câu hỏi: Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the other three in the position of primary stress in each of the following questions. A. household B. concern C. garbage D. conflict Đáp án là: B. concern </s>

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<s> Chọn đáp án đúng với câu hỏi: Cho 82,05 gam hỗn hợp A gồm Al và Al 2 O 3 (có tỷ lệ mol là 2,3:1) tan hoàn toàn trong dung dịch B chứa H 2 SO 4 và NaNO 3 thu được dung dịch C chỉ chứa 3 muối và m gam hỗn hợp khí D (trong D có 0,2 mol khí H 2 ). Cho BaCl 2 dư vào C thấy có 838,8 gam kết tủa xuất hiện. Mặt khác cho 23 gam Na vào dung dịch C sau khi các phản ứng xảy ra thì thấy khối lượng dung dịch giảm 3,1 gam và không còn muối amoni. Giá trị m gần nhất với A. 12 B. 13 C. 15 D. 16 Đáp án là: A. 12 </s>

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<s> Chọn đáp án đúng với câu hỏi: Cây trồng nào sau đây chiếm tỉ trọng cao nhất trong cơ cấu giá trị sản xuất ngành trồng trọt của nước ta? A. Cây ăn quả và rau đậu. B. Cây lương thực. C. Cây hoa màu. D. Cây công nghiệp. Đáp án là: B. Cây lương thực. </s>

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