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<s> Chọn đáp án đúng với câu hỏi: This passage probably appeared in which of the following?
A. diet book
B. A book on basic nutrition
C. A cookbook
D. A popular women’s magazine Đáp án là: B. A book on basic nutrition </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Chọn câu trả lời sai. 1 lạng bằng:
A. 100g
B. 0,1kg
C. 1g
D. 1 héc-ta-gam Đáp án là: C. 1g </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Vì sao ADN có tính đa dạng và đặc thù?
A. Sinh vật đa dạng phong phú nhưng đồng thời các loài cũng có các đặc điểm khác nhau, nên ADN cũng có tính đa dạng và đặc thù
B. ADN thuộc loại đại phân tử, có kích thước lớn và khối lượng h... | [
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<s> Chọn đáp án đúng với câu hỏi: Khi nói về sóng điện từ, phát biểu nào sau đây là sai?
A. Sóng điện từ truyền được trong môi trường vật chất và trong chân không
B. Sóng điện từ có thể là sóng dọc hoặc sóng ngang
C. Trong chân không, sóng điện từ lan truyền vơ... | [
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<s> Chọn đáp án đúng với câu hỏi: Nguồn điện có suất điện động E, điện trở trong r, mắc nối tiếp với mạch ngoài có điện trở R = r thì cường độ dòng điện trong mạch I. Nếu thay nguồn điện đó bằng 3 nguồn điện giống hệt nó và mắc nối tiếp với nhau thì cu... | [
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<s> Chọn đáp án đúng với câu hỏi: Who was mentioned as being on board the Space Shuttle Challenger?
A. A doctor
B. A teacher
C. A reporter
D. A scientist Đáp án là: B. A teacher </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Kiểu phát triển của động vật qua biến thái hoàn toàn là kiểu phát triển mà còn non có?
A. Đ ặc điểm hình thái sinh lý rất khác với con trưởng thành
B. Đ ặc điểm hình thái cấu tạo tương tự với con trưởng thành, nhưng khác về... | [
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<s> Chọn đáp án đúng với câu hỏi: The word “novel” in paragraph 1 is closest in meaning to ______.
A. futuristic
B. unorthodox
C. inventive
D. unknown Đáp án là: D. unknown </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Đường lối đổi mới trong chủ trương xây dựng chủ nghĩa xã hội đặc sắc Trung Quốc có đặc điểm gì?
A. Lấy cải tổ chính trị làm trọng tâm.
B. Lấy phát triển kinh tế làm trọng tâm.
C. Lấy phát triển kinh tế, chính trị làm trọng ... | [
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<s> Chọn đáp án đúng với câu hỏi: Khi nói về dao động điện từ trong một mạch dao động LC lí tưởng, phát biểu nào sau đây sai?
A. Cường độ dòng điện trong mạch biến thiên điều hoà theo thời gian
B. Năng lượng điện từ trong mạch biến thiên tuần hoàn theo thời gian
... | [
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<s> Chọn đáp án đúng với câu hỏi: Nguyên nhân chủ yếu sinh ra ngoại lực là do
A. động đất, núi lửa, sóng thần.
B. hoạt động vận động kiến tạo.
C. năng lượng bức xạ Mặt Trời.
D. sự di chuyển vật chất ở manti. Đáp án là: C. năng lượng bức xạ Mặt Trời. </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Nhóm các bệnh nào sau đây thuộc loại bệnh truyền nhiễm?
A. Cúm, cận thị, nấm da, HIV/AIDS.
B. Cúm, sốt rét, nấm da, HIV/AIDS.
C. Ung thư, loãng xương, thoái hóa khớp.
D. Ung thư, cận thị, HIV/AIDS. Đáp án là: B. Cúm, sốt rét, nấm da, HIV/AID... | [
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<s> Chọn đáp án đúng với câu hỏi: Dòng nào sau đây đúng với thơ trữ tình?
A. Thơ trữ tình phải có một cốt truyện
B. Thơ trữ tình phải có một hệ thống lập luận chặt chẽ.
C. Thơ trữ tình có thể biểu hiện gián tiếp tình cảm, cảm xúc qua miêu tả, kể chuyện va... | [
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<s> Chọn đáp án đúng với câu hỏi: Lực đàn hồi nói chung và lực đàn hồi của lò xo nói riêng có rất nhiều ứng dụng quan trọng trong khoa học kĩ thuật và đời sống. Trong các vật dụng sau đây, vật dụng nào không ứng dụng lực đàn hồi?
A. Bút bi.
B. Xe máy.
C. Điều khie... | [
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5089... | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Tom. “Is there anything interesting _____ the paper today?" Anna. “Well, there’s an unusual picture____ the back page ”
A. on – on
B. in – on
C. in – in
D. on - in Đáp án là: B. in – on </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Some scientists have suggested that human tears are (1) _____ of an aquatic past – but this does not seem very likely.
A. witness
B. evidence
C. result
D. display Đáp án là: B. evidence </s> | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Phát minh nào không phải là thành tựu khoa học – kĩ thuật ở cuối thế kỉ XVIII – đầu thế kỉ XIX?
A. Bản đồ gen người.
B. Đầu máy xe lửa chạy bằng hơi nước.
C. Máy hơi nước.
D. Tàu thủy chạy bằng động cơ hơi nước. Đáp án là: A. B... | [
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1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: What is the percentage of women who have stopped smoking?
A. 43%
B. 31%
C. 46%
D. 11% Đáp án là: D. 11% </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Cặp chất nào sau đây không thể tồn tại trong cùng một dung dịch?
A. HCl và Na 2 SO 4
B. H 2 CO 3 và NaHCO 3
C. HCl và Ba(HCO 3 ) 2
D. Ca(HCO 3 ) 2 và BaCl 2 Đáp án là: C. HCl và Ba(HCO 3 ) 2 </s> | [
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1,
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1... |
<s> Chọn đáp án đúng với câu hỏi: Khi mật độ cá thể của quần thể tăng lên quá cao, nguồn sống của môi trường không đủ cung cấp cho mọi cá thể trong quần thể thì
A. Mức sinh sản của quần thể và tỉ lệ sống sót của các con non đều giảm
B. kích thuớc quần thể ... | [
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3150... | [
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1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Biết khối lượng các hạt là m p = 1,00728 u, m n = 1,00867 u, m e = 0,000549 u. Độ hụt khối của hạt nhân 12 6 C là
A. 12,09 u
B. 0,0159 u
C. 0,604 u
D. 0,0957 u Đáp án là: C. 0,604 u </s> | [
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1,
1,
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1... |
<s> Chọn đáp án đúng với câu hỏi: Dựa vào những biến đổi về địa chat, khí hậu, sinh vật, người ta chia lịch sử Trái Đất thành các đại theo thời gian từ trước đến nay là
A. đại Thái cổ, đại Nguyên sinh, đại Cổ sinh, đại Trung sinh, đại Tân sinh.
B. đại Thái cổ, đại... | [
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302,
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1... | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Loại tế bào nào sau đây không thực hiện quá trình nguyên phân?
A. Tế bào vi khuẩn
B. Tế bào thực vật
C. Tế bào động vật
D. Tế bào nấm Đáp án là: A. Tế bào vi khuẩn </s> | [
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105... | [
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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 How many_______ are there in your family?
A. teachers
B. students
C. person
D. people Đáp án là: D. people </s> | [
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470,
360,
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1,
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1,
1,
1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Đảng Cộng sản Việt Nam ra đời ngày 3-2-1930 là kết quả tất yếu của
A. phong trào dân tộc dân chủ trong những năm 1919 - 1926.
B. cuộc đấu tranh dân tộc và giai cấp ở Việt Nam trong thời đại mới.
C. phong trào công nhân trong những năm... | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Jim's decided to buy a phonograph even though they are now redundant.
A. old-fashioned
B. reproduced
C. unnecessary
D. expensive Đáp án là: C. unnecessary </s> | [
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1,
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1... |
<s> Chọn đáp án đúng với câu hỏi: Thứ tự không đúng trong thang sóng điện từ có bước sóng giảm dần là:
A. Sóng vô tuyến điện, tia hồng ngoại, ánh sáng nhìn thấy.
B. Ánh sáng nhìn thấy, tia tử ngoại, tia X.
C. Tia tử ngoại, tia X, tia gamma.
D. Sóng vô tuyến, tia gamma, a... | [
1,
1,
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30128,
29976,
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1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Cho phương trình phản ứng: 4 Zn + 5 H 2 SO 4 đặc/nóng → 4 ZnSO 4 + X + 4 H 2 O. X là
A..
B. H 2 O.
C. S.
D. H 2. Đáp án là: B. H 2 O. </s> | [
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1,
1,
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1,
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1,
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1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Đặt vào hai đầu đoạn mạch RLC một điện áp xoay chiều u = U 0 cos ( ω t ) V, với U 0 không đổi và ω thay đổi được. Đồ thị biên biểu diễn sự phụ thuộc của điện áp hiệu dụng trên tụ điện, cuộn cảm thuần theo ω được cho như hình ve... | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Bắc Mỹ có diện tích đất đồng bằng rộng lớn nhưng hiện nay đang bị thoái hóa mạnh do nguyên nhân nào?
A. Lớp phủ thực vật bị phá hủy.
B. Sử dụng phân bón hóa học lớn và thuốc bảo vệ thực vật.
C. Chất thải công nghiệp.
D. Nguo... | [
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<s> Chọn đáp án đúng với câu hỏi: Một quần thể ngẫu phối, ở thế hệ xuất phát có thành phần kiểu gene là 0,36BB+0,48Bb+0,16bb=1. Khi trong quần thể này, các cá thể có kiểu gene dị hợp có sức sống và khả năng sinh sản cao hơn hẳn so với các cá thể có kiểu gene... | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Kết quả của phép tính: 13428 - 9876 là
A. 85332
B. 3552
C. 4528
D. 3798 Đáp án là: B. 3552 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Tổng các nghiệm của phương trình \[\left( {x - 2} \right)\sqrt {2x + 7} = {x^2} - 4\] bằng:
A. 0;
B. 1;
C. 2;
D. 3. Đáp án là: D. 3 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Over the last few months garages_________ the price of petrol three times.
A. have risen
B. have put up
C. raised
D. have gone up Đáp án là: B. have put up </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Một khung dây dẫn hình vuông cạnh a = 6 cm; đặt trong từ trường đều B = 4.10 - 3 T, đường sức từ trường vuông góc với mặt phẳng khung dây. Cầm hai cạnh đối diện hình vuông kéo về hai phía để được hình chữ nhật có cạnh này da... | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Mẫu chung nguyên dương nhỏ nhất của các phân số 19/(3^2.7.11);23/(3^3.7^2.19) là :
A. 3^2.7^2
B. 3^3.7^3.11.19
C. 3^2.7^2.11.19
D. 3^3.7^2.11.19 Đáp án là: D. 3^3 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Điều nào sau đây là đúng khi nói về sự bảo toàn cơ năng.
A. Động năng chỉ có thể chuyển hóa thành thế năng.
B. Thế năng chỉ có thể chuyển hóa thành động năng.
C. Động năng và thế năng có thể chuyển hóa lẫn nhau, nhưng cơ năng... | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Ở Tây nguyên, chè được trồng
A. trên các cao nguyên cao, nhiệt độ thấp.
B. trên các cao nguyên thấp, kín gió.
C. nhiều ở tất cả các tỉnh.
D. ở những nơi có đất badan. Đáp án là: A. trên các cao nguyên cao, nhiệt độ thấp. </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Hợp chất nào sau đây phản ứng được với clo?
A. NaCl.
B. KOH.
C. CaCO 3.
D. H 2 SO 4. Đáp án là: B. KOH. </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Ở mặt thoáng của một chất lỏng, tại hai điểm A và B cách nhau 20 cm có hai nguồn sóng dao động điều hòa theo phương thẳng đứng, cùng pha, cùng biên độ và cùng tần số 50 Hz. Coi biên độ sóng không đổi khi sóng truyền đi. Tốc độ tru... | [
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1,
1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Một con lắc lò xo đang dao động điều hòa trên mặt phẳng nằm ngang với biên độ bằng 5 cm và tần số 5 Hz. Khi vật đi qua vị trí có li độ 4 cm thì ta tiến hành giữ cố định điểm chính giữa của lò xo. Sau thời điểm đó, biên độ dao ... | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions. It may take you up to _________ hour to make this dish..
A. a
B. an
C. the
D. x Đáp án là: B. an </s> | [
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30030,
865,
325,
31280,
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274,
30057,
29884,
298,
228,
190,
146,
29875,
29901,
4485,
278,
5497,
319,
29892,
350,
29892,
315,
470,
360,
373,
596,
... | [
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<s> Chọn đáp án đúng với câu hỏi: Điều kiện cơ bản nhất để các nước trong ASEAN tiến hành hợp tác thuận lợi là
A. Vị trí địa lí.
B. Khí hậu gió mùa.
C. Vùng biển rộng lớn.
D. Thành phần dân tộc tương đồng. Đáp án là: A. Vị trí địa lí. </s> | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Biển Đông là một vùng biển kín do bị bao bọc bởi
A. Lục địa và các vòng cung đảo.
B. Ấn Độ Dương và Thái Bình Dương.
C. Các quốc gia có chung vùng biển với Việt Nam.
D. Vành đai lửa châu Á -Thái Bình Dương. Đáp án là: A. Lục địa và ... | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Cho 17,15 gam hỗn hợp X gồm Na và Ba vào nước thu được dung dịch Y và 3,92 lít H 2 (đktc). Cho khí CO 2 vào dung dịch Y. Tính thể tích CO 2 (đktc) cần cho vào dung dịch X để kết tủa thu được là lớn nhất?
A. 2, 24 lít ≤ V ≤ 4, 48 lít
B. 2, 24 l... | [
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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 whose underlined part differs from the other three in pronunciation in each of the following questions.
A. damag ed
B. sacrific ed
C. distinguish ed
D. develop ed Đáp án là: A. damag ed </s> | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Katherine_____ at Bob's house every night this week.
A. has been eaten
B. has eating
C. is being eating
D. has been eating Đáp án là: D. has been eating </s> | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Loại mạch máu nào dưới đây có chức năng nuôi dưỡng tim?
A. Động mạch dưới đòn
B. Động mạch dưới cằm
C. Động mạch vành
D. Động mạch cảnh trong Đáp án là: C. Động mạch vành </s> | [
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1,
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1... |
<s> Chọn đáp án đúng với câu hỏi: Phương trình : 6 n C O 2 + 5 n H 2 O → c l o r o p h i n a s ( C 6 H 10 O 5 ) n + 6 n O 2, là phản ứng hoá học chính của quá trình nào sau đây?
A. Quá trình hô hấp.
B. Quá trình quang hợp.
C. Quá trình phân hủy.
D. Quá trình thủy phân. Đáp án là: B. Quá... | [
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29... | [
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1,
1,
1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Số oxi hóa của crom trong hợp chất CrO 3 là
A. +2.
B. +3.
C. +4.
D. +6. Đáp án là: D. +6 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: The Browns are both unemployed. With their six children they must be in a tight corner these day.
A. in disappointment
B. in a bad condition
C. wealthy
D. exhausted Đáp án là: A. in disappointment </s> | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Kết quả của phép tính: 12,55 + 7,45 x 4 =.................... là
A. 80
B. 8000
C. 24
D. 42,35 Đáp án là: D. 42,35 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Dãy gồm các chất đều có khả năng tham gia phản ứng trùng hợp là:
A. benzen; isopren; but – 1 – en.
B. eten; propilen; buta – 1, 3 – đien.
C. 1, 2 – điclopropan; vinylaxetilen; benzen.
D. buta – 1, 3 – đien; benzen; but – 2 – en. Đáp án là: B. eten; propilen; buta – 1,... | [
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1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Các quốc gia ở Đông Nam Á giành độc lập trong tháng 8-1945: Inđônexia, Việt Nam và Lào. Hãy nêu điều kiện khách quan để ba nước này sớm giành độc lập.
A. Mỗi nước có sự lãnh đạo của một chính đảng hoặc một tổ chức chính trị... | [
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<s> Chọn đáp án đúng với câu hỏi: This small coffee shop is very _______ with people in my neighbourhood.
A. popularise
B. popular
C. popularly
D. popularity Đáp án là: B. popular </s> | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Cho Fe (hạt) phản ứng với dung dịch HCl 1M. Thay đổi các yếu tố sau: (1) Thêm vào hệ một lượng nhỏ dung dịch CuSO 4. (2) Thêm dung dịch HCl 1M lên thể tích gấp đôi. (3) Nghiền nhỏ hạt sắt thành bột sắt. (4) Pha loãng dung dịch HCl bằng n... | [
1,
1,
29871,
678,
30975,
29876,
29871,
30128,
29976,
29886,
29871,
1715,
29871,
30128,
30030,
865,
325,
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29875,
274,
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29884,
298,
228,
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146,
29875,
29901,
14542,
5169,
313,
2350,
31214,
29873,
29897,
1374,
29874,
207,
140,
... | [
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<s> Chọn đáp án đúng với câu hỏi: Fruit and vegetables grew in abundance on the island. The islanders even exported the surplus.
A. large quantity
B. small quantity
C. excess
D. sufficiency Đáp án là: B. small quantity </s> | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Nội dung nào sau đây không phản ánh đúng cuộc đấu tranh bảo vệ, thực thi chủ quyền, các lợi ích hợp pháp của Nhà nước Cộng hòa xã hội chủ nghĩa Việt Nam ở Biển Đông?
A. Từ chối tham gia Công ước Luật Biển năm 1982 của Liên h... | [
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<s> Chọn đáp án đúng với câu hỏi: Dãy nào trong các chất sau đây gồm các chất được xếp theo chiều giảm dần độ phân cực của liên kết trong phân tử?
A. MgO, NaBr, CaO, A l C l 3, C H 4
B. CaO, MgO, NaBr, A l C l 3, C H 4
C. NaBr, CaO, A l C l 3, C H 4, MgO
D. A l C l 3, C H 4, NaBr, CaO, ... | [
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<s> Chọn đáp án đúng với câu hỏi: Thủy phân hoàn toàn 17,4 gam đipeptit X có công thức phân tử là C 7 H 14 O 3 N 2 trong NaOH thu được 2 muối của 2 aminoaxit. Khối lượng muối thu được là
A. 20,4 gam
B. 21,8 gam
C. 23,6 gam
D. 25,4 gam Đáp án là: C. 23,6 gam </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 correct answer to each of the following questions. John ______ this task yesterday morning, but I did it for him. He owes me a thank-you.
A. must have completed
B. may have completed
C. should have completed
D. could ha... | [
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<s> Chọn đáp án đúng với câu hỏi: Everyone in the office seemed to show no _______ for the idea of working overtime.
A. competition
B. solution
C. resource
D. enthusiasm Đáp án là: D. enthusiasm </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Tìm x biết 4/7× x=1/3
A. x=7/12
B. x=12/7
C. x=4/21
D. x=19/21 Đáp án là: A. x=7/12 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Số 870549 đọc là:
A. Tám mươi bảy nghìn năm trăm bốn mươi chín.
B. Tám trăm bảy mươi nghìn bốn trăm năm mươi chín.
C. Tám trăm linh bảy nghìn năm trăm bốn mươi chín.
D. Tám trăm bảy mươi nghìn năm trăm bốn mươi chín. Đáp án là: D. Tám trăm bảy mươi nghìn năm trăm bốn mươi chín </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Khi nói về cấu tạo của lăng kính thiên văn, phát biểu nào sau đây là đúng?
A. Vật kính là thấu kính phân kì có tiêu cự rất ngắn, thị kính là thấu kính hội tụ có tiêu cự ngắn
B. Vật kính là thấu kính hội tụ có tiêu cự rất... | [
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<s> Chọn đáp án đúng với câu hỏi: Nguyên nhân chủ yếu ngành đánh bắt thuỷ hải sản nước ta còn hạn chế là do
A. thiếu nguồn vốn đầu tư.
B. ngư dân ngại đánh bắt xa bờ.
C. thiên nhiên nhiều thiên tai.
D. môi trường bị ô nhiễm, suy thoái. Đáp án là: A. thiếu nguồn vô... | [
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<s> Chọn đáp án đúng với câu hỏi: Một đoạn mạch điện xoay chiều gồm điện trở thuần R mắc nối tiếp với tụ điện C. Nếu dung kháng Z C bằng R thì cường độ dòng điện chạy qua điện trở luôn
A. nhanh qua π/4 so với điện áp ở hai đầu đoạn mạch
B. chậm pha π/2 so vớ... | [
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19807,
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31... | [
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1,
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1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Dung dịch axit clohidric tác dụng với sắt tạo thành:
A. Sắt (II) clorua và khí hiđro
B. Sắt (III) clorua và khí hiđro
C. Sắt (II) sunfua và khí hiđro
D. Sắt (II) clorua và nước Đáp án là: C. Sắt (II) sunfua và khí hiđro </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Trong giảm phân, các NST xếp trên mặt phẳng xích đạo của thoi phân bào ở?
A. Kì giữa I và kì sau I
B. Kì giữa II và kì sau II
C. Kì giữa I và kì giữa II
D. Cả A và C Đáp án là: C. Kì giữa I và kì giữa II </s> | [
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1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: In Southern Vietnam, __________.
A. the warm weather makes it hard to plant fruit and vegetables
B. fresh herbs are always used in cooking
C. people love sweet food
D. sugar is often added to dishes Đáp án là: D. sugar is often added to dishes </s> | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Loại đột biến nhiễm sắc thể nào dưới đây được sử dụng để xác định vị trí gen trên nhiễm sắc thể?
A. Dị bội (lệch bội) và Mất đoạn
B. Dị đa bội
C. Mất đoạn
D. Chuyển đoạn Đáp án là: A. Dị bội (lệch bội) và Mất đoạn </s> | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Trong hệ trục tọa độ Oxy, cho đường tròn (C) có phương trình \({\left( {x - 2} \right)^2} + {\left( {y - 2} \right)^2} = 4\). Hỏi phép đồng dạng có được bằng cách thực hiện liên tiếp phép vị tự tâm O tỉ số \(k = \frac{1}{2}\) và phép quay tâm O góc quay \(180^\circ \) sẽ biến đường trò... | [
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1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Quãng đường Hà Nội – Bắc Ninh dài 43 km. Vậy khi làm tròn đến chữ số hàng chục thì ta nói quãng đường từ Hà Nội đến Bắc Ninh dài khoảng bao nhiêu ki-lô-mét?
A. 20 km
B. 30 km
C. 40 km
D. 50 km Đáp án là: C. 40 km </s> | [
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1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Tích phân 0(π)/4cos((π)/2−x)dx bằng:
A. (1−√(2))/(√(2))
B. 1−√(2)
C. (√(2)−1)/(√(2))
D. √(2)−1 Đáp án là: C. (√(2)−1)/(√(2)) </s> | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Từ 1 tế bào xoma có bộ nhiễm sắc thể lưỡng bội 2n, nguyên phân liên tiếp 8 lần. Tuy nhiên, trong một lần phân bào ở một tế bào con có hiện tượng tất cả các nhiễm sắc thể không phân li nên chỉ tạo ra một tế bào có bộ n... | [
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12603,
207,
158,
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29896,
734,
31500,
30103,
9922,
30712,... | [
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1,
1,
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1,
1,
1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Toàn cầu hoá kinh tế dẫn tới
A. thu hẹp khoảng cách giàu nghèo.
B. thu hẹp phạm vi hoạt động của các công ti xuyên quốc gia.
C. thu hẹp tồi chính thế giới.
D. tăng sự phụ thuộc lẫn nhau giữa các nền kinh tế. Đáp án là: D. tăng sự phụ... | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Tại nơi có gia tốc trọng trường g, một con lắc đơn dao động điều hòa với biên độ góc α 0. Biết khối lượng vật nhỏ của con lắc là m, chiều dài dây treo là l, mốc thế năng ở vị trí cân bằng. Cơ năng của con lắc là
A. 1 2 m g l... | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Để đi bằng đường bộ (đường ô tô) từ Bắc vào Nam, ngoài quốc lộ 1 còn có
A. Quốc lộ 6.
B. Quốc lộ 5.
C. Đường Hồ Chí Minh.
D. Quốc lộ 2. Đáp án là: C. Đường Hồ Chí Minh. </s> | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Trong không gian Oxyz, tìm tọa độ điểm H là hình chiếu vuông góc của điểm A(1;2;3) trên mặt phẳng (α):z+1=0.
A. H(−1;−2;1).
B. H(1;2;−1).
C. H(1;2;1).
D. H(0;0;−1). Đáp án là: B. H(1;2;−1). </s> | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Monkeys can ’t sing, ______?
A. can they
B. can’t they
C. can it
D. can't it Đáp án là: A. can they </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Để nhận biết ion NO 3 - trong dung dịch dùng Cu và H 2 SO 4 loãng đung nóng vì
A. phản ứng tạo dd màu xanh thẫm.
B. phản ứng tạo kết tủa xanh lam
C. phản ứng tạo kết tủa vàng nhạt
D. tạo thành dd màu xanh và khí không màu hóa nâu trong không... | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Trong phân tử α - amino axit nào sau có 5 nguyên tử C?
A. glyxin
B. lysin
C. valin
D. alanin Đáp án là: C. valin </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Sự phân bố electron vào các lớp và phân lớp căn cứ vào
A. số khối.
B. điện tích hạt nhân.
C. nguyên tử khối.
D. mức năng lượng electron. Đáp án là: D. mức năng lượng electron </s> | [
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29876,
1045,
31500,
30103,... | [
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<s> Chọn đáp án đúng với câu hỏi: Các nguồn phát ánh sáng trắng là:
A. mặt trời
B. nguồn phát tia laze
C. đèn LED đỏ
D. đèn ống dùng trong trang trí Đáp án là: A. mặt trời </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Trung wishes that he can have a chance to visit Singapore.
A. that
B. can
C. a chance
D. visit Đáp án là: B. can </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Phát biểu nào sau đây là sai khi nói về dao động của con lắc đơn (bỏ qua lực cản của môi trường)?
A. Với dao động nhỏ thì dao động của con lắc là dao động điều hòa
B. Khi vật nặng ở vị trí biên, cơ năng của con lắc bằng thế nă... | [
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<s> Chọn đáp án đúng với câu hỏi: Muốn trung hòa 14 gam một chất béo X cần 15 ml dung dịch KOH 0,1M. Hãy tính chỉ số axit của chất béo X và khối lượng KOH cần để trung hòa 10 gam chất béo X có chỉ số axit bằng 5,6?
A. 5 và 14 mg KOH
B. 6 và 56 mg KOH
C. 6 và 28 mg KOH
D. 4 và... | [
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<s> Chọn đáp án đúng với câu hỏi: Tài nguyên nước của Đồng bằng sông H ồ ng phong phú gồm
A. nước mặt và nguồn nước ngầm rất lớn
B. nước trong các đầm, hồ ao, ngòi lạch
C. nước mặt, nước ngầm, nước nóng, nước khoáng
D. nước của hệ thống sông Hồng, ... | [
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<s> Chọn đáp án đúng với câu hỏi: Đứng thứ ba thế giới về xuất khẩu là sản phẩm nào của Pháp hiện nay?
A. Thủy sản, chế biến.
B. Hàng dệt may.
C. Công nghiệp chế tạo vũ khí.
D. Hoa quả và rau. Đáp án là: C. Công nghiệp chế tạo vũ khí. </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Khó khăn chủ yếu của mạng lưới đường sông nước ta là
A. các luồng lạch bị sa bồi và thay đổi thất thường về độ sâu.
B. tổng năng lực bốc xếp của các cảng còn thấp.
C. trang bị các cảng sông còn nghèo nàn.
D. các phương tiẹ... | [
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<s> Chọn đáp án đúng với câu hỏi: 2,24 lít hỗn hợp X gồm buta–1,3–đien và penta–1–3-đien (đktc) có thể tác dụng hết tối đa bao nhiêu lít dung dịch brom 0,10 M?
A. 2l
B. 3l
C. 2,5l
D. 4l Đáp án là: A. 2l </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Choose the letter A, B, C or D the word that has the underlined part different from others.
A. d o
B. g o
C. t o
D. m o ve Đáp án là: B. g o </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Lựa chọn đáp án đúng nhất:Tìm y, biết:y x 100 = 256,7 + 123,4
A. y = 2,567
B. y = 1,234
C. y = 380,1
D. y = 3,801 Đáp án là: D. y = 3,801 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Một quần thể sinh vật tại thời điểm hiện tại có T (con), biết quần thể đó có tỉ lệ tăng trưởng r theo năm, hỏi số sinh vật trong quần thể từ 2 năm trước là bao nhiêu?
A. A=Te2^r
B. A=Te-2^r
C. A=(T)/(e-2^r)
D. A=2Te-^r Đáp án là: B. A=Te-2^r </s> | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Không thể tìm thấy được 2 người có cùng kiểu gen giống hệt nhau trên Trái Đất, ngoại trừ trường hợp sinh đôi cùng trứng vì trong quá trình sinh sản hữu tính
A. Tạo ra một số lượng lớn biến dị tổ hợp
B. Các gen có điều kiẹ... | [
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<s> Chọn đáp án đúng với câu hỏi: Read the passage carefully and choose the correct answer. People usually sing because they like music or because they feel happy. They express their happiness by singing. When a bird sings however, its song usually means much more than that the bird is happy. Birds have many reasons fo... | [
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1959,
1234,
29889,
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<s> Chọn đáp án đúng với câu hỏi: Các hành tinh trong Hệ Mặt Trời theo thứ tự xa dần Mặt Trời là
A. Sao Thủy, sao Kim, Trái Đất, sao Hỏa, sao Mộc, sao Thổ, Thiên Vương, Hải Vương.
B. Sao Thủy, Trái Đất, sao Mộc, sao Hỏa. sao Thổ, sao Mộc, Hải Vương, Thiên Vương.
C. Sao... | [
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27773,
29882,
534,
549,... | [
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1,
1,
1,
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1,
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1,
1,
1,
1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Nguyên tử X có điện tích hạt nhân là +2,7234.10 -18 C. Trong nguyên tử X số hạt mang điện nhiều hơn số hạt không mang điện là 16. Kí hiệu nguyên tử của X là
A. C 17 37 l
B. K 19 40
C. C 17 35 l
D. K 19 39 Đáp án là: C. Trong nguyên tử X số hạt ... | [
1,
1,
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29871,
30128,
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865,
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274,
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29875,
29901,
405,
2543,
4099,
31500,
29876,
5291,
207,
158,
207,
140,
1060,
1302... | [
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1,
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1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Học thuyết nào dưới đây đã đặt nền tảng cho các phát minh của cuộc Cách mạng công nghiệp lần thứ ba?
A. Thuyết tương đối.
B. Thuyết tiến hóa.
C. Thuyết “Bàn tay vô hình”.
D. Thuyết “Bàn tay hữu hình”. Đáp án là: A. Thuyết tương đố... | [
1,
1,
29871,
678,
30975,
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30128,
29976,
29886,
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274,
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29875,
29901,
8335,
31214,
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266,
29884,
4099,
31500,
30103,
29873,
1055,
3071... | [
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1,
1,
1,
1,
1,
1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Ở người mắt nâu (N) là trội đối với mắt xanh (n). Bố mắt nâu, mẹ mắt nâu, sinh con có đứa mắt nâu có đứa mắt xanh, kiểu gen của bố mẹ sẽ là:
A. Đều có kiểu gen Nn
B. Đều có kiểu gen nn
C. Bố có kiểu gen NN, mẹ có kiểu gen ... | [
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30030,
865,
325,
31280,
29875,
274,
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298,
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146,
29875,
29901,
438,
207,
158,
207,
140,
302,
2543,
207,
158,
29877,
207,
158,
30... | [
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1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1... |
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