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<s> Chọn đáp án đúng với câu hỏi: Nora says she's 17 but I ________ here.
A. don't believe
B. didn't believe
C. won't believe
D. wouldn't believe Đáp án là: A. don't believe </s> | [
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<s> Chọn đáp án đúng với câu hỏi: He had been expected to cope well with examinations and _______ good results.
A. achieve
B. consider
C. last
D. object Đáp án là: A. achieve </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 with given words The first/ sport competition/ held/ Greece/ 776 B.C.
A. The first sport competition is held in Greece in 776 B.C.
B. The first sport competition was held in Greece in 776 B.C.
C. The first sport competition is he... | [
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<s> Chọn đáp án đúng với câu hỏi: Biện phép nghệ thuật nào được tác giả sử dụng hiệu quả trong bài thơ?
A. Phép điệp ngữ
B. Phép đối
C. Phép so sánh
D. Phép nhân hóa Đáp án là: B. Phép đối </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Ảnh của vật sáng đặt gần gương cầu lõm là:
A. Ảnh ảo có thể hứng được trên màn.
B. Ảnh ảo bé hơn vật.
C. Ảnh ảo có thể quay phim chụp ảnh được.
D. Ảnh ảo không chụp ảnh được. Đáp án là: D. Ảnh ảo không chụp ảnh được </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Trật tự thế giới hai cực Ianta” sau Chiến tranh thế giới thứ hai bị chi phối bởi hai cường quốc nào?
A. Mĩ và Trung Quốc.
B. Mĩ và Anh.
C. Mĩ và Đức.
D. Mĩ và Liên Xô. Đáp án là: D. Mĩ và Liên Xô </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Many high school students find it hard to study _______ history.
A. ∅
B. a
C. an
D. The Đáp án là: A. ∅ </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Khi mất khả năng dung nạp chất dinh dưỡng, cơ thể chúng ta sẽ trở nên kiệt quệ, đồng thời khả năng vận động cũng bị ảnh hưởng nặng nề. Ví dụ trên phản ánh điều gì
A. Các hệ cơ quan trong cơ thể có mối liên hệ mật thiết ... | [
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<s> Chọn đáp án đúng với câu hỏi: ______, she often wears in red.
A. After I have met her
B. Whenever I meet her
C. By the time I meet her
D. Until I will meet her Đáp án là: B. Whenever I meet her </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Lựa chọn đáp án đúng nhất:5/7÷3/4=?
A. 21/20
B. 20/21
C. 1
D. 22/21 Đáp án là: B. 20/21 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Một học sinh đứng lan can tầng bốn ném quả cầu thẳng đứng lên trên, tiếp theo đó ném tiếp quả cầu thẳng đứng xuống dưới với cùng tốc độ. Bỏ qua sức cản của không khí, quả cầu nào chạm mặt đất có tốc độ lớn hơn?
A. Qủa... | [
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<s> Chọn đáp án đúng với câu hỏi: Một chất điểm dao động theo phương trình độ là x = 6 cos ( ωt ) (cm). Dao động của chất điểm có biên
A. 2 cm.
B. 3 cm.
C. 12 cm.
D. 6 cm. Đáp án là: D. 6 cm </s> | [
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<s> Chọn đáp án đúng với câu hỏi: He warned me ______ all my money in that company.
A. not to invest
B. do not invest
C. did not invest
D. not investing Đáp án là: A. not to invest </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Phương trình phản ứng nào sau đây không thể hiện tính khử của NH 3?
A. NH 3 + HNO 3 → NH 4 NO 3
B. 4NH 3 + 5O 2 → 4NO + 6H 2 O
C. 2NH 3 + 3CuO → 3Cu + 3H 2 O + N 2
D. 8NH 3 + 3Cl 2 → 6NH 4 Cl + N 2 Đáp án là: A. NH 3 + HNO 3 → NH 4 NO 3 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Nguyên nhân chủ yếu gây ra sóng thần là do
A. bão, lốc xoáy trên các đại dương.
B. chuyển động của dòng khí xoáy.
C. sự thay đổi áp suất của khí quyển.
D. động đất ngầm dưới đáy biển. Đáp án là: D. động đất ngầm dưới đáy biể... | [
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<s> Chọn đáp án đúng với câu hỏi: Ancol etylic được điều chế từ tinh bột bằng phương pháp lên men với hiệu suất toàn bộ quá trình là 90%. Hấp thụ toàn bộ lượng CO 2 sinh ra khi lên men m gam tinh bột vào nước vôi trong, thu được 330 gam kết tủa và dung dịch X. Biế... | [
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530,
1054,
634,
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506,
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207,
158,
29877,
2... | [
1,
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1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Thuốc thử để nhận biết ba lọ mất nhãn chứa các dung dịch riêng biệt H 2 SO 4, BaCl 2, NaCl là:
A. dung dịch phenolphtalein
B. giấy quỳ tím
C. dung dịch NaOH
D. dung dịch HCl Đáp án là: B. giấy quỳ tím </s> | [
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29... | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Circle the word that has the underlined part pronounced differently from the rest.
A. h i gh
B. an i mal
C. cap i tal
D. th i ck Đáp án là: A. h i gh </s> | [
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27927,
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278,
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760,
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17... | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Điều nào sau đây phản ánh chính xác nhất về quá trình đồng hóa?
A. Tổng hợp chất hữu cơ từ các chất vô cơ đơn giản
B. Tổng hợp chất khí
C. Phân giải chất hữu cơ thành các chất tương đồng nhau
D. Tổng hợp chất hữu cơ và ... | [
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865,
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29... | [
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1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Nguyên nhân chủ yếu dẫn đến các cuộc đấu tranh giành độc lập dân tộc ở Đông Nam Á vào cuối thế kỉ XIX - đầu thế kỉ XX là do: mâu thuẫn giữa
A. nhân dân thuộc địa với chính quyền thực dân phương Tây.
B. giai cấp tư sản với... | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Các phép liên kết chủ yếu được học là?
A. Phép nối, phép lặp
B. Phép liên tưởng, trái nghĩa
C. Phép thế
D. Cả 3 đáp án trên Đáp án là: D. Cả 3 đáp án trên </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Khi viết văn bản tóm tắt, cần tuân thủ các bước nào?
A. Sắp xếp các ý chính của văn bản gốc theo một trình tự hợp lí
B. Dùng lời văn của bản thân kết hợp với những từ ngữ quan trọng trong văn bản gốc để viết văn bản tóm... | [
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<s> Chọn đáp án đúng với câu hỏi: The International Red Cross helps people in need without any discrimination based on __________, race, religion, class or political opinions.
A. national
B. nationally
C. nationality
D. native Đáp án là: C. nationality </s> | [
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5632... | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: I sometimes drop off on the sofa.
A. sleep
B. drink
C. eat
D. buy Đáp án là: A. sleep </s> | [
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1,
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1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Dựa vào bảng số liệu GDP của Trung Quốc và thế giới qua các năm (câu 1), trả lời câu hỏi: Biểu đồ thích hợp nhất để thể hiện GDP của Trung Quốc và thế giới giai đoạn 1985 – 2014 là
A. Biểu đồ tròn.
B. Biểu đồ miền.
C. Biểu đ... | [
1,
1,
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678,
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29876,
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5334,
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207,
140,
8... | [
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1,
1,
1,
1,
1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Một máy phát điện xoay chiều một pha có phần cảm là rôto gồm 4 cặp cực (4 cực nam và 4 cực bắc). Để suất điện động do máy này sinh ra có tần số 50 Hz thì rôto phải quay với tốc độ.
A. 480 vòng/phút
B. 75 vòng/phút
C. 25 vòng/phu... | [
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1,
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678,
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865,
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298... | [
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1,
1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Chế độ chính trị của nước Anh vào cuối thế kỉ XIX – đầu thế kỉ XX là chế độ
A. quân chủ chuyên chế.
B. quân chủ lập hiến.
C. cộng hòa liên bang.
D. dân chủ cộng hòa. Đáp án là: B. quân chủ lập hiến. </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Tìm số nguyên n sao cho 2n + 1 chia hết cho n – 5:
A. n\[ \in \]{–4; 6; 10};
B. n\[ \in \]{4; 8; 16};
C. n\[ \in \]{\[ \pm \]4; 6; 10};
D. n\[ \in \]{4; \[ \pm \]6; 16}. Đáp án là: D. n\[ \in \]{4; \[ \pm \]6; 16} </s> | [
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1,
1,
1,
1,
1,
1,
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1,
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1,
1,
1,
1,
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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 phương án sai?
A. Quá trình truyền nhiệt là một quá trình không thuận nghịch
B. Cơ năng không thể chuyển hóa hoàn toàn thành nội năng
C. Con lắc đơn dao động điều hòa là quá trình thuận nghịch
D. Nội năng không thể chuyển hóa... | [
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2... | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Nước ta trồng nhiều loại cây có nguồn gốc nhiệt đới, cận nhiệt và ôn đới là do
A. gió mùa hoạt động mạnh.
B. khí hậu phân hóa đa dạng.
C. nguồn nhiệt, ẩm dồi dào.
D. mùa khô kéo dài sâu sắc. Đáp án là: B. khí hậu phân hóa đa d... | [
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<s> Chọn đáp án đúng với câu hỏi: Mark the letter A, B, C, or D to indicate the sentence that is closest in meaning to the original sentence in each of the following questions. Dangerous driving causes many accidents.
A. Causes of many accidents are being driven.
B. Accidents are caused by many dangerous driving.
C. Ma... | [
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304,... | [
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<s> Chọn đáp án đúng với câu hỏi: Trong các số dưới đây chữ số 7 trong số nào có giá trị là 7000:
A. 71 608
B. 57 312
C. 570 064
D. 56 738 Đáp án là: B. 57 312 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Hệ tuần hoàn của côn trùng không có chức năng nào sau đây?
A. Vận chuyển chất bài tiết
B. Vận chuyển chất dinh dưỡng
C. vận chuyển khí
D. trao đổi chất trực tiếp với tế bào Đáp án là: C. vận chuyển khí </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Định luật II – Niuton cho biết
A. Lực là nguyên nhân làm xuất hiện gia tốc của vật
B. Mối liên hệ giữa khối lượng và vận tốc của vật
C. Mối liên hệ giữa vận tốc, gia tốc và thời gian
D. Lực là nguyên nhân gây ra chuyển đọ... | [
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<s> Chọn đáp án đúng với câu hỏi: Kiểu gen Aabb khi phát sinh giao tử sẽ cho mấy loại giao tử?
A. 1
B. 2
C. 3
D. 4 Đáp án là: B. 2 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Một tụ điện có điện dung 500 pF được mắc vào hiệu điện thế 100 V. Điện tích của tụ điện bằng
A. q = 5.10 4 nC
B. q = 5.10 -2 μC
C. q = 5.10 -4 μC.
D. q = 5.10 4 μC Đáp án là: B. q = 5.10 -2 μC </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Điền số thích hợp vào ô trống:Biết trung bình cộng của 10 số là 83,52, trung bình cộng của 9 số đầu là 78,5. Vậy số thứ 10 là....
A. 12,87
B. 128,7
C. 1287
D. 1278 Đáp án là: B. 128,7 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Thói ăn chơi của chúa Trịnh được miêu tả thông qua chi tiết nào?
A. Xây dựng đình đài, cung điện, thú vui ngao du vô độ.
B. Cách bài trí phủ chúa không thiếu gì những thứ bên ngoài.
C. Việc thu sản vật quý, thứ quý bày vẽ trang trí t... | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Vùng biển của Việt Nam không giáp với vùng biển của quốc gia nào dưới đây?
A. Xin-ga-po.
B. Phi-lip-pin.
C. Đông Ti-mo.
D. Ma-lai-xi-a. Đáp án là: C. Đông Ti-mo. </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Gốc và gốc C 6 H 5 - có tên gọi lần lượt là:
A. phenyl và benzyl.
B. vinyl và anlyl.
C. anlyl và vinyl.
D. benzyl và phenyl. Đáp án là: C. anlyl và vinyl. </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Cho hàm số y=2018/(x−2) có đồ thị (H). Số đường tiệm cận của (H) là:
A. 2
B. 0
C. 3
D. 1 Đáp án là: A. 2 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Ánh sáng trên bề mặt rộng 7,2 mm của vùng giao thoa người ta đếm được 9 vân sáng (hai rìa là hai vân sáng). Tại vị trí cách vân trung tâm 14,4 mm là vân:
A. tối thứ 18.
B. tối thứ 16.
C. sáng thứ 18.
D. sáng thứ 16. Đáp án là: D. sáng thu... | [
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865,
2578,
31500,
29876,
367,
... | [
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<s> Chọn đáp án đúng với câu hỏi: If someone says you are totally ( 61 ) _________ in talent, ignore them.
A. incapable
B. interested
C. short
D. lacking Đáp án là: D. lacking </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Nhà văn Võ Thu Hương thường viết về đề tài gì?
A. Người nông dân
B. Những người nghèo khổ
C. Thiếu nhi
D. Thiên nhiên Đáp án là: C. Thiếu nhi </s> | [
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<s> Chọn đáp án đúng với câu hỏi: The famous Cam Ly Falls is only 3 kilometres (8) ______ the town centre.
A. in
B. at
C. to
D. from Đáp án là: D. from </s> | [
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<s> Chọn đáp án đúng với câu hỏi: The film was so intriguing that the audience was all glued to the screen until the end.
A. paid attention to
B. lost interest in
C. got fed up with
D. put up with Đáp án là: A. paid attention to </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Để loại bỏ Al, Fe, CuO ra khỏi hỗn hợp gồm Ag, Al, Fe và CuO, có thể dùng lượng dư dung dịch nào sau đây?
A. Dung dịch Fe(NO 3 ) 3
B. Dung dịch HCl
C. Dung dịch HNO 3
D. Dung dịch NaOH Đáp án là: B. Dung dịch HCl </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Trong mạch điện xoay chiều R, L, C nối tiếp với u và i là điện áp và cường độ dòng điện tức thời. Chọn phát biểu đúng:
A. u và i luôn luôn biến thiên cùng tần số
B. u và i luôn luôn cùng pha
C. u luôn luôn sớm pha hơn i là π 2
D. u... | [
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<s> Chọn đáp án đúng với câu hỏi: Use conditioner regularly to make your hair soft and _______.
A. manage
B. management
C. manager
D. manageable Đáp án là: D. manageable </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Trong số các phần tử (nguyên tử hoặc ion) sau, phần tử vừa đóng vai trò chất khử, vừa đóng vai trò chất oxi hóa là
A. Cu
B. Ca 2+
C. O 2-
D. Fe 2+ Đáp án là: D. Fe 2+ </s> | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Một ấm điện hoạt động bình thường ở hiệu điện thế U = 220V và cường độ dòng điện qua bếp là I = 5A. Dùng bếp trên để đun sôi 3,5 lít nước ở 25 O C thì mất 20 phút. Biết nhiệt dung riêng của nước là c = 4200 J/(kg.K) và 1 lít... | [
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<s> Chọn đáp án đúng với câu hỏi: Ai là tác giả chính của nhóm văn chương Ngô gia văn phái?
A. Ngô Chi Thất và Ngô Đình Diệm
B. Ngô Chi Thất và Ngô Trân
C. Ngô Thì Sĩ và Ngô Trân
D. Ngô Thì Chí và Ngô Thì Du Đáp án là: D. Ngô Thì Chí và Ngô Thì Du </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Một cảnh sát giao thông bắn tốc độ (đơn vị: km/h) của 13 chiếc xe qua trạm và ghi lại kết quả như sau:
20
40
35
45
70
45
40
25
35
40
45
35
25
Hỏi mật độ số liệu tập trung chủ yếu ở đâu?
A. Bên trái Q_2;
B. Bên phải Q_2;
C. Số liệu dàn trải đều;
D... | [
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<s> Chọn đáp án đúng với câu hỏi: What did Mars Global Surveyor do?
A. It searched for hidden canals on Mars
B. It mapped part of the surface of Mars
C. It showed what the Martian face really was
D. It looked for signs of life on Mars Đáp án là: C. It showed what the Martian face really was </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Tính \[\frac{2}{3}:\frac{1}{2}\] bằng
A. 3
B. 1
C. \[\frac{1}{3}\]
D. \[\frac{4}{3}\] Đáp án là: C. \[\frac{1}{3}\] </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Việc suy giảm và thủng tầng ô – dôn gây hậu quả gì sau đây?
A. Gia tăng hiện tương mưa axít.
B. Băng tan ở hai cực.
C. Nhiệt độ Trái Đất tăng lên.
D. Mất lớp bảo vệ Trái Đất. Đáp án là: D. Mất lớp bảo vệ Trái Đất </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Nhau thai sản sinh ra hoocmôn?
A. Progesteron
B. FSH
C. HCG
D. LG Đáp án là: C. HCG </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Cơ cấu công nghiệp theo ngành ở nước ta hiện nay không có đặc điểm nào sau đây?
A. Đang nổi lên một số ngành công nghiệp trọng điểm
B. Tương đối đa dạng
C. Ổn đinh về tỉ trọng giữa các ngành
D. Đang có sự chuyển dịch rõ rệt nh... | [
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<s> Chọn đáp án đúng với câu hỏi: Cho tứ diện ABCD có các cạnh AB, AC và AD đôi một vuông góc với nhau AB = a; AC = 2a và AD = 3a. Gọi M và N lần lượt là trung điểm của BD, CD. Thể tích của tứ diện ADMN là
A. V=a^3.
B. V=(2a^3)/3.
C. V=(3a^3)/4.
D. V=(a^3)/4. Đáp án là: D. Thể tích của tứ diện ADMN làA </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Hai bạn Giang và Vân đi chơi ở một tòa nhà cao tầng. Từ tầng 19 của tòa nhà, Giang thả rơi viên bi A thì 1s sau thì Vân thả rơi viên bi B ở tầng thấp hơn 10m. Hai viên bi sẽ gặp nhau lúc nào, ở đâu cho g = 9,8 m / s 2
A. 1,5s; 112,5m
B. 2,5s;... | [
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<s> Chọn đáp án đúng với câu hỏi: Hai người được sinh ra từ hai gia đình có người mắc chứng câm điếc bẩm sinh thì có nên kết hôn với nhau không?
A. Không nên kết hôn với nhau
B. Nếu kết hôn thì không nên sinh con để tránh có con câm điếc (xác suất tới 25%)
C. Ne... | [
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<s> Chọn đáp án đúng với câu hỏi: Cho tam giác MNP có 21M^=14N^=6P^. Số đo góc N là:
A. 30°;
B. 45°;
C. 60°;
D. 105°. Đáp án là: B. 45°; </s> | [
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<s> Chọn đáp án đúng với câu hỏi: M ột loài thú, cho con đự c m ắ t tr ắng, đuôi dài giao phố i v ới con cái mắt đ ỏ, đuôi ngắ n (P), thu đư ợc F1 có 100% con m ắt đỏ, đuôi ng ắ n. Cho F1 giao ph ố i v ới nhau, thu đư ợc F2 có ki ểu hình gồ m: Ở gi ới cái có 100% cá ... | [
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<s> Chọn đáp án đúng với câu hỏi: Câu hỏi nào sau đây không nêu ra khi muốn giải thích rõ một vấn đề gì đó trong phép lập luận giải thích?
A. Là gì?
B. Như thế nào?
C. Tại sao?
D. Có được yêu thích không? Đáp án là: D. Có được yêu thích không? </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Đường tròn (C) có tâm I(2;-3) và tiếp xúc với trục Oy có phương trình là:
A. (x+2)^2+(y–3)^2=4.
B. (x+2)^2+(y–3)^2=9.
C. (x+2)^2+(y–3)^2=4.
D. (x+2)^2+(y–3)^2=9. Đáp án là: C. (x+2)^2+(y–3)^2=4. </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Đường kính mặt trong của ống hình trụ là 1mm, hai đầu ống đều hở. Cho g = 9,8m/s2.
A. 3cm
B. 4cm
C. 2cm
D. 2,5cm Đáp án là: A. 3cm </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Cho các phản ứng mô tả các phương pháp khác nhau để làm mềm nước cứng (dùng M 2+ thay cho Ca 2+ và Mg 2+ ) như sau: Phương pháp nào có thể áp dụng với nước có tính cứng tạm thời?
A. (1)
B. (2)
C. (1) và (2)
D. (1), (2), (3) và (4) Đáp án l... | [
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<s> Chọn đáp án đúng với câu hỏi: Choose the word which is stressed differently from the rest.
A. inflation
B. instruction
C. efficient
D. influence Đáp án là: D. influence </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 rest in the pronunciation of the underlined part in each of the following questions
A. f oo d
B. g oo d
C. t oo th
D. t oo l Đáp án là: B. g oo d </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Hiện tượng nào dưới đây đã được mô tả không đúng?
A. Thổi khí NH 3 qua CrO 3 đun nóng thấy chất rắn chuyển từ màu đỏ sang màu lục thẫm.
B. Đun nóng S với K 2 Cr 2 O 7 thấy chất rắn chuyển từ màu da cam sang màu lục thẫm.
C. Nung C... | [
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<s> Chọn đáp án đúng với câu hỏi: Sự hạn chế của các nguồn tài nguyên thể hiện rõ nhất ở tài nguyên
A. khí hậu.
B. đất.
C. khoáng sản.
D. nước. Đáp án là: C. khoáng sản. </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Trong cách mô tả sau đây về tương quan giữa trọng lượng P và lực căng T, câu nào đúng?
A. Cùng phương, ngược chiều, cùng độ lớn
B. Cùng phương, cùng chiều, cùng độ lớn
C. Cùng phương, ngược chiều, khác độ lớn
D. Không cùng gia... | [
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2... | [
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<s> Chọn đáp án đúng với câu hỏi: The survey should be performed by an independent professional.
A. amateur
B. tutor
C. junior
D. alien Đáp án là: A. amateur </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Một loài thực vật, alen A quy định thân cao trội hoàn toàn so với alen a quy định thân thấp; alen B quy định hoa đỏ trội hoàn toàn so với alen b quy định hoa vàng. Cho cây thân cao, hoa đỏ (P) tự thụ phấn, thu được F 1 có 4 loại kiểu hình, t... | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Choose a word in each line that has different stress pattern
A. medicine
B. graduate
C. confident
D. encourage Đáp án là: D. encourage </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Đại lượng đặc trưng cho mức quán tính của một vật là:
A. Vận tốc
B. Lực
C. Trọng lượng
D. Khối lượng Đáp án là: D. Khối lượng </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Theo thuyết lượng tử ánh sáng, phát biểu nào sau đây sai?
A. Năng lượng của các phôtôn ứng với các ánh sáng đơn sắc khác nhau là như nhau.
B. Trong chân không, các phôtôn bay dọc theo tia sáng với tốc độ 3.10 8 m/s.
C. Ánh sáng được ... | [
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<s> Chọn đáp án đúng với câu hỏi: Trong kế hoạch 5 năm (1986 – 1990), nhân dân Việt Nam đã hoàn thành mục tiêu của ba chương trình kinh tế là
A. lương thực, thực phẩm; hàng tiêu dùng và hàng xuất khẩu.
B. hàng tiêu dùng; hàng xuất khẩu và công nghệ phần mềm.
C. lươ... | [
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<s> Chọn đáp án đúng với câu hỏi: Trong một trò chơi với bốn căn phòng bên trong có chứa sắt, gỗ, đá và vàng có cánh cửa ra vào các căn phòng được làm với màu sắc và kích thước giống nhau. Nếu mở được căn phòng bên trong có chứa vàng sẽ chiến thắng. Vậy biến cố “Mở được căn phòng chứa vàng” có xác suất bằng?
A. ;
B. ;
... | [
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<s> Chọn đáp án đúng với câu hỏi: Một máy phát điện xoay chiều một pha với rôto là nam châm có p cặp cực (p cực nam và p cực bắc). Khi rôto quay đều với tốc độ n vòng/giây thì từ thông qua mỗi cuộn dây của stato biến thiên tuần hoàn với tần số:
A.
B.
C.
D. Đáp... | [
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<s> Chọn đáp án đúng với câu hỏi: Chọn phát biểu đúng:
A. Góc có số đo 120^0 là góc vuông
B. Góc có số đo 80^0 là góc tù
C. Góc có số đo 100^0 là góc nhọn
D. Góc có số đo 150^0 là góc tù Đáp án là: D. Góc có số đo 150^0 là góc tù </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Which of the following statements is TRUE, according to the passage?
A. Children’s modes of transportation are greatly influenced by their parents’ dispositions.
B. Out-of-home activity participation increases with age with both sexes.
C. In public domain, teenagers are no longer inter... | [
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<s> Chọn đáp án đúng với câu hỏi: Một số có tổng với 5 bằng 9. Vậy lấy số đó 5 lần thì có giá trị là:
A. 4
B. 14
C. 19
D. 20 Đáp án là: D. 20 </s> | [
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1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
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<s> Chọn đáp án đúng với câu hỏi: Phương trình nào dưới đây nhận x = a (a là hằng số khác 0 và 1) làm nghiệm
A. 5x – 3a = 2
B. x^2 – a.x = 0
C. x^2 = a
D. 5a-(x)/5=3x Đáp án là: B. x^2 – a.x = 0 </s> | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Nguyên nhân chủ yếu dẫn đến tình trạng khó khăn, không ổn định của các nước Châu Phi từ cuối những năm 80 của thế kỉ XX đến nay là gì?
A. Các cuộc tấn công, khủng bố của lực lượng Hồi giáo cực đoan.
B. Xung đột sắc tộc, to... | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: David and Linda are talking about the environmental problem. - David: “I think that people should use public transport instead of their own cars to reduce pollution.” Linda: “ _______”
A. What nonsense!
B. I can’t agree with you more.
C. I don’t know. I just don’t think it’s for me.
D.... | [
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<s> Chọn đáp án đúng với câu hỏi: Hòa tan hoàn toàn m gam Mg trong dung dịch HCl dư, thu được 7,84 lít khí H 2 (đktc). Giá trị của m là:
A. 8,4
B. 9,6
C. 10,8
D. 7,2 Đáp án là: A. 8,4 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Từ một cây hoa quý hiếm, bằng cách áp dụng kĩ thuật nào sau đây có thể nhanh chóng tạo ra nhiều cây có kiểu gen giống nhau và giống với cây hoa ban đầu?
A. Nuôi cấy hạt phấn
B. Nuôi cấy mô
C. Nuôi cấy noãn chưa được thụ tinh
D. ... | [
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<s> Chọn đáp án đúng với câu hỏi: Trong phép chia 37,2 : 13 nếu chỉ lấy đến 2 chữ số ở phần thập phân của thương thì số dư là:
A. 0,2
B. 2
C. 0,02
D. 2,2 Đáp án là: C. 0,02 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Residents were warned not to be extravagant with water, ______ the low rainfall this year.
A. in view of
B. with a view to
C. regardless of
D. irrespective of Đáp án là: A. in view of </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Cho a + 8 < b. So sánh a - 7 và b - 15?
A. a - 7 < b - 15
B. a - 7 > b - 15
C. a - 7 ≥ b - 15
D. a - 7 ≤ b - 15 Đáp án là: A. a - 7 < b - 15 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: I remembered ______ up in that house with my brothers and sisters.
A. to growing
B. growing
C. grow
D. to grow Đáp án là: B. growing </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Chọn đáp án đúng:Biểu thức rút gọn và giá trị của biểu thức:P=5x(x^2−3)+x^2(7−5x)−7x^2 với x = -5 là:
A. P=−15x;P=75
B. P=−14x;P=60
C. P=14x;P=60
D. P=15x;P=75 Đáp án là: A. P=−15x;P=75 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: . Đế quốc Rô-ma dần dần lâm vào tình trạng khủng hoảng vào từ thế kỷ
A. Từ thế kỷ III
B. Từ thế kỷ IV
C. Từ thế kỷ V
D. Từ thế kỷ VI Đáp án là: A. Từ thế kỷ III </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Hỗn hợp X chứa chất A (C 5 H 16 O 3 N 2 ) và chất B (C 4 H 12 O 4 N 2 ) tác dụng với dung dịch NaOH vừa đủ, đun nóng cho đến khi phản ứng xảy ra hoàn toàn rồi cô cạn thu được m gam hỗn hợp Y gồm 2 muối D và E (M D < M E ) và 4,48 lít (đktc)... | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Find the word which has a different sound in the part underlined.
A. b o ring
B. sp o rty
C. v o lunteer
D. sh o rt Đáp án là: C. v o lunteer </s> | [
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<s> Chọn đáp án đúng với câu hỏi: The man and his dogs ________ were buried in the demolished building after the earthquake have just been rescued safely.
A. which
B. who
C. that
D. whom Đáp án là: C. that </s> | [
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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 the word that has different stress pattern from others.
A. instruction
B. telephone
C. ambulance
D. personal Đáp án là: D. personal </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,
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: Hai dao động điều hòa cùng phương, cùng tần số, cùng pha, có biên độ lần lượt là 3cm và 4cm. Biên độ dao động tổng hợp của hai dao động này là:
A. 1 cm.
B. 7 cm.
C. 5 cm.
D. 2 cm. Đáp án là: A. 1 cm. </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,
1146,
29877,
29871,
30128,
29877,
31214,
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: Hai lực F 1 →, F 2 → song song ngược chiều có độ lớn lần lượt là F 1 = 10 N, F 2 = 20 N, biết khoảng cách từ giá của lực F 1 → đến giá của lực F 2 → là 0,6m. Độ lớn của hợp lực và khoảng cách từ giá của hợp lực tới giá của là:... | [
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,
8092,
207,
158,
31214,
29883,
383,
29871,
29896,
10309,
... | [
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1... |
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