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<s> Chọn đáp án đúng với câu hỏi: Not only _____ the exam but she also got a scholarship.
A. has she passed
B. she has passed
C. she passed
D. did she passed Đáp án là: D. did she passed </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Cho bảng số liệu: DÂN SỐ VÀ TỐC ĐỘ TĂNG TRƯỞNG GDP CỦA LIÊN BANG NGA QUA CÁC NĂM Nhận xét nào sau đây không đúng?
A. Dân số Liên Bang Nga có xu hướng giảm đều và liên tục qua các năm.
B. Dân số Liên Bang Nga nhìn chung có xu hướng gi... | [
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<s> Chọn đáp án đúng với câu hỏi: Trong những năm 1944 -1945, điều kiện khách quan thuận lợi nào đã thúc đẩy nhân dân các nước Đông Âu nổi dậy giành chính quyền, thành lập nhà nước dân chủ nhân dân?
A. Phát xít Đức chuyển hướng tấn công sang đánh chiếm các nư... | [
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<s> Chọn đáp án đúng với câu hỏi: Choose the word whose syllable is stressed differently from that of the others in each line.
A. solicitor
B. separately
C. spacious
D. sequence Đáp án là: A. solicitor </s> | [
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<s> Chọn đáp án đúng với câu hỏi: “_______ you treat him, he’ll help you. He’s so tolerant.”
A. Even though
B. No matter how
C. As if
D. In addition to Đáp án là: B. No matter how </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 whose underlined part differs from the other three in pronunciation in each of the following Questions.
A. f a me
B. b a by
C. m a ny
D. pl a ne Đáp án là: C. m a ny </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Đồ thị biểu diễn sự biến thiên của vận tốc theo li độ trong dao động điều hoà có dạng là
A. đường parabol.
B. đường tròn.
C. đường elip.
D. đường hypebol. Đáp án là: C. đường elip. </s> | [
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<s> Chọn đáp án đúng với câu hỏi: The word “those” refers to______.
A. passengers
B. icebergs
C. people
D. lifeboats Đáp án là: D. lifeboats </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Amin có tính bazơ do nguyên nhân nào sau đây?
A. Amin tan nhiều trong nước
B. Có nguyên tử N trong nhóm chức
C. Nguyên tử N còn có cặp electron tự do có thể nhận proton
D. Phân tử amin có liên kết hiđro với nước Đáp án là: C. Nguyên tử N ... | [
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<s> Chọn đáp án đúng với câu hỏi: Xét một chiếc thuyền trên dòng sông. Gọi: Vận tốc của thuyền so với bờ là v 21 ; Vận tốc của nước so với bờ là v 31 ; Vận tốc của thuyền so với nước là v 23. Như vậy:
A. v 21 là vận tốc tương đối
B. v 21 là vận tốc kéo ... | [
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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 is closest in meaning to each of the following questions. John is fat because he eats so many chips.
A. John will not be fat if he doesn't eat so many chips.
B. If John didn't eat so many chips, he wouldn'... | [
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<s> Chọn đáp án đúng với câu hỏi: Cho sơ đồ phản ứng sau: toluen → 1 : 1 + Cl 2 as X → + NaOH, t o Y → + CuO, t o Z → dd AgNO 3 / NH 3 T Biết X, Y, Z, T là các hợp chất hữu cơ và là những sản phẩm chính. Công thức cấu tạo đúng nhất của T là chất nào sau đây?
A. C 6 H 5 – COOH
B. ... | [
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<s> Chọn đáp án đúng với câu hỏi: Cuối thế kỉ XIX, đế quốc nào đã gạt bỏ ảnh hưởng của Tây Ban Nha và biến Phi-lip-pin thành thuộc địa?
A. Hà Lan.
B. Pháp.
C. Mĩ
D. Tây Ban Nha Đáp án là: B. Pháp. </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Trong các mệnh đề sau
a. 2x -1 = 0.
b. 7 là số nguyên tố.
c. x^2– 3x + 5 < 0.
d. x là số chính phương.
e. 15 chia hết cho 3.
Số mệnh đề chứa biến là:
A. 2
B. 4
C. 5
D. 3 Đáp án là: D. 3 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Nguyên hàm của I=∫xsinxcos^2xdx là:
A. I_1=−xcos^3x+t−1/3t^3+C,t=sinx
B. I_1=−xcos^3x+t−2/3t^3+C,t=sinx
C. I_1=xcos^3x+t−1/3t^3+C,t=sinx
D. I_1=xcos^3x+t−2/3t^3+C,t=sinx Đáp án là: A. I_1=−xcos^3x+t−1/3t^3+C,t=sinx </s> | [
1,
1,
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1,
1,
1,
1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: His eyes were red and _______.
A. watery
B. humid
C. damp
D. soaked Đáp án là: A. watery </s> | [
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1,
1,
1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Đâu không phải là nguyên nhân khiến sau chiến thắng Ấp Bắc (1963) một phong trào chống Mĩ lại dấy lên khắp miền Nam?
A. Chứng minh quân dân miền Nam hoàn toàn có khả năng đánh thắng “chiến tranh đặc biệt"
B. Lòng tin của quân đội S... | [
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413,
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865,
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29874... | [
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1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Lan đi từ trường lúc 17 giờ kém 15 phút và về đến nhà lúc 17 giờ 5 phút. Lan đi từ trường về nhà hết:
A. 15 phút
B. 5 phút
C. 30 phút
D. 20 phút Đáp án là: D. 20 phút </s> | [
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1,
1,
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1... |
<s> Chọn đáp án đúng với câu hỏi: Khi nói về mắt, câu phát biểu nào sau đây là sai?
A. Khi nhìn vật ở xa thì tiêu cự của thể thủy tinh mắt lớn nhất
B. Khi nhìn vật ở xa vô cực mắt phải điều tiết tối đa
C. Khoảng cách nhìn rõ ngắn nhất của mắt thay đổi theo đo... | [
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611,
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137,
30... | [
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1,
1,
1,
1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Một vật thực hiện đồng thời hai dao động điều hòa cùng phương là. x 1 = 5 c o s 10 π t − π 3 c m và x 2 = 5 sin 10 π t + π 2 c m Tốc độ trung bình của vật từ t = 0 đến khi qua vị trí cân bằng lần đầu là
A. 0,47 m/s.
B. 2,47 m/s.
C. 0,87 m/s.
... | [
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4546,
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266,
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207... | [
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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: Choose the correct sentences among A, B, C or D which has the same meaning at the given one. Lan started studying English five years ago and she still studies it.
A. Lan has studied English five years ago.
B. Lan has been studying English for five years
C. Lan has studied English since... | [
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1,
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1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Hàm số \(y = - \frac{1}{x}\)đồng biến trên khoảng nào dưới đây?
A. \(\left( { - \infty ;1} \right)\).
B. \(\left( {1; + \infty } \right)\).
C. \(\mathbb{R}\).
D. \(\mathbb{R}\backslash \left\{ 0 \right\}\). Đáp án là: B. \(\left( {1; + \infty } \right)\). </s> | [
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1,
1,
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1... |
<s> Chọn đáp án đúng với câu hỏi: Cho khí CO (dư) đi qua ống sứ nung nóng đựng hỗn hợp X gồm: Al 2 O 3, MgO, Fe 3 O 4, CuO thu được chất rắn Y. Cho Y vào dung dịch NaOH (dư), khuấy kĩ, thấy còn lại phần không tan Z. Giả sử các phản ứng xảy ra hoàn toàn. Phần không tan Z g... | [
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1,
1,
1,
1,
1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Cho 100 tấm thẻ được đánh số từ 1 đến 100, chọn ngẫu nhiên 3 tấm thẻ. Xác suất để chọn được 3 tấm thẻ có tổng các số ghi trên thẻ là số chia hết cho 2 là
A. \[P = \frac{3}{4}\]
B. \[P = \frac{5}{6}\]
C. \[P = \frac{1}{2}\]
D. \[P = \frac{5}{7}\] Đáp án là: C. \[P = \frac{1}{2}\] </s> | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Căn cứ vào Atlat Địa lí Việt Nam trang 9, cho biết nhận xét nào sau đây đúng về chế độ nhiệt của Hà Nội so với TP. Hồ Chí Minh?
A. Nhiệt độ trung bình năm cao hơn.
B. Biên độ nhiệt độ trung bình năm nhỏ hơn.
C. Nhiệt độ trung bình... | [
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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 sentence that best combines each pair of sentences in the following questions Sue and Brian met. Shortly after that, he announced they were getting married.
A. As soon as Sue and Brian met, they announced they were gett... | [
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470,
360,
373,... | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: We shouldn’t eat a lot of ________
A. red rice
B. fresh fruit
C. fish
D. chocolate Đáp án là: D. chocolate </s> | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Một kính hiển vi, với vật kính có tiêu cự 5 mm, thị kính có tiêu cự 2,5 cm. Hai kính đặt cách nhau 15 cm. Người quan sát có giới hạn nhìn rỏ cách mắt từ 20 cm đến 50 cm. Xác định vị trí đặt vật trước vật kính để nhìn thấy ảnh... | [
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29875,
29901,
4546,
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29882,
298,
347,
31500... | [
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1,
1,
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<s> Chọn đáp án đúng với câu hỏi: Cho bảng số liệu: TỔNG THU NHẬP QUỐC DÂN CỦA MỘT SỐ NƯỚC MỸ LATINH, NĂM 2016 VÀ NĂM 2017 (Đơn vị: tỉ USD) Dựa vào bảng số liệu trên, biểu đồ nào thích hợp nhất để thể hiện GDP của các quốc gia Mỹ Latinh?
A. Miền.
B. Đường.
C... | [
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<s> Chọn đáp án đúng với câu hỏi: Bài ca dao sau đề cập đến nội dung gì? Một cây làm chẳng nên non, Ba cây chụm lại nên hòn núi cao.
A. Miêu tả sức sống và vẻ đẹp của thiên nhiên.
B. Bộc lộ tình cảm của tác giả trước sức mạnh của thiên nhiên.
C. Nêu bài học về s... | [
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<s> Chọn đáp án đúng với câu hỏi: _______ did you buy so much food? - To serve some guests tonight.
A. How
B. When
C. Why
D. Where Đáp án là: C. Why </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Ở E.coli, trong quá trình dịch mã của một phân tử mARN, môi trường đã cung cấp 199 axit amin để hình thành nên một chuỗi polipeptit. Gen tổng hợp nên phân tử mARN này có tỉ lệ A/G = 0,6. Khi đột biến gen xảy ra, chiều dài của gen không... | [
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<s> Chọn đáp án đúng với câu hỏi: I like my work because I have the ________ to make my own decisions.
A. freed
B. freely
C. freedom
D. free Đáp án là: C. freedom </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Có bao nhiêu ước của – 24.
A.9
B.17
C.8
D.16 Đáp án là: D.16 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Sau chiến tranh thế giới thứ hai Mỹ thực hiện chính sách đối ngoại như thế nào?
A. Hòa bình hợp tác với các nước trên thế giới.
B. Bắt tay với Trung Quốc.
C. Triển khai chiến lược toàn cầu với tham vọng làm bá chủ thế giới... | [
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<s> Chọn đáp án đúng với câu hỏi: Hợp chất C 5 H 10 có bao nhiêu đồng phân cấu tạo?
A. 4
B. 5
C. 6
D. 10 Đáp án là: C. 6 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Choose the word (A, B, C or D) that best fits the blank space in the following passage. (1,5pts) One of the (13) _______ things that can happen on our earth is an earthquake. When earthquakes take place near large cities, many people may be killed and many buildings are (14) _______ do... | [
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852,
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350,
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315,
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360... | [
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<s> Chọn đáp án đúng với câu hỏi: According to the article, when will the students go back to the dig site?
A. within a week
B. in two months
C. during summer vacation
D. next autumn Đáp án là: A. within a week </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Khối khí hidro có các nguyên tử đang ở trạng thái kích thích nhất thì khối khí nhận thêm năng lượng và chuyển lên trạng thái kích thích mới. Biết rằng ở trạng thái kích thích mới, electron chuyển động trên quỹ đạo có bán kính g... | [
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1302,
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1... |
<s> Chọn đáp án đúng với câu hỏi: Bao nhiêu hoạt động sau đây của con người góp phần vào việc khắc phục suy thoái môi trường và sử dụng bền vững tài nguyên thiên nhiên? (1) Bảo vệ rừng, trồng cây gây rừng. (2) Bảo vệ và tiết kiệm nguồn nước sạch. (3) Tiết ki... | [
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6000,
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<s> Chọn đáp án đúng với câu hỏi: Để tăng thêm lượng xăng khi chưng cất dầu mỏ, người ta sử dụng phương pháp
A. ngưng tụ.
B. cracking.
C. tách.
D. hóa hơi. Đáp án là: B. cracking. </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Helen is one of the most favored synchronized swimming athletes in our school team.
A. individual
B. coordinated
C. critical
D. contractual Đáp án là: B. coordinated </s> | [
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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: Đặc điểm nào sau đây không phải của Biển Đông?
A. Nằm trong vùng nhiệt đới gió mùa.
B. Là biển rộng thứ hai trong các biển của Thái Bình Dương.
C. Là biển tương đối kín, phía đông và đông nam được bao bọc bởi các vòng cung đảo.
D... | [
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<s> Chọn đáp án đúng với câu hỏi: Vòng tuần hoàn nhỏ của nước bao gồm những giai đoạn nào sau đây?
A. Bốc hơi và nước rơi.
B. Bốc hơi và dòng chảy.
C. Thấm và nước rơi.
D. Nước rơi và dòng chảy. Đáp án là: A. Bốc hơi và nước rơi. </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Công lao to lớn của quân Tây Sơn trong việc giành độc lập dân tộc Việt Nam thế kỉ XVIII là
A. đánh tan quân xâm lược ở mạn Nam
B. đánh tan quân xâm lược ở mạn Bắc
C. đánh tan quân xâm lược Xiêm và Mãn Thanh
D. tiêu diệt họ Nguyễ... | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Cho một khung dây hình chữ nhật ABCD có AB=10cm; BC=20cm, có dòng điện I=5A chạy qua đặt trong một từ trường đều có các đường sức từ song song với mặt phẳng chứa khung dây và hợp với cạnh AD một góc a = 30 0 như hình vẽ. Biết B=0... | [
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725... | [
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<s> Chọn đáp án đúng với câu hỏi: Cách hiểu đúng nhất về từ “chén đồng” trong đoạn thơ trên?
A.Chén ăn cơm làm bằng đồng
B.Chén nước làm bằng đồng
C.Chén rượu làm bằng đồng thể hiện sự đồng lòng, đồng tâm
D.Chén rượu đồng cam cộng khổ Đáp án là: C.Chén ru... | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Đặt điện áp u = U 0 cosωt vào hai đầu đoạn mạch RLC nối tiếp, cuộn dây thuần cảm, điện dung C thay đổi được. Khi C = C 0 thì công suất tiêu thụ trên đoạn mạch đạt cực đại bằng 200 W. Khi C = C 1 thì điện áp hiệu dụng trên tụ bằng 150... | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Làm tròn số 79,8245 đến chữ số thập phân thứ hai là:
A. 79,83.
B. 79,82.
C. 79,8.
D. 79,9. Đáp án là: B. 79,82. </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Travel insurance is sometimes mistaken for temporary health insurance, but the two are actually different.
A. mutable
B. permanent
C. passing
D. transitory Đáp án là: B. permanent </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Ở cà chua, alen A qui định quả đỏ là trội hoàn toàn so với alen a qui định quả vàng. Thực hiện phép lai Pgiữa hai cây cà chua thuần chủng và mang cặp tính trạng tương phản thu được F 1. Cho cây cà chua F 1 lai trở lại với cây đồng hợp ... | [
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<s> Chọn đáp án đúng với câu hỏi: Lựa chọn đáp án đúng nhất:Tìm y, biết:y - 55,78 = 27,92 + 18,56
A. y = 102,25
B. y = 102,26
C. y = 102,27
D. y = 102,28 Đáp án là: B. y = 102,26 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Trong mặt phẳng có 30 điểm, trong đó không có ba điểm nào thẳng hàng. Có bao nhiêu vectơ khác vectơ - không mà điểm đầu và điểm cuối được lấy từ 30 điểm trên?
A. 870
B. 435
C. 30^2
D. 2^30 Đáp án là: A. 870 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: The world's richest countries agreed poor nations' debts temporarily, mainly in Africa.
A. suspending
B. to suspending
C. having suspended
D. to suspend Đáp án là: D. to suspend </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Cán cân xuất - nhập khẩu của khối ASEAN đạt giá trị dương (xuất siêu) là thành tựu về mặt
A. Văn hóa.
B. Xã hội.
C. Kinh tế.
D. Chính trị. Đáp án là: C. Kinh tế. </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Biết hàm số F(x)=-x√(1-2x)+2017 là một nguyên hàm của hàm số f(x)=(ax+b)/(√(1-2x)). Khi đó tổng của a và b là
A. 3.
B. 2.
C. 0.
D. 1. Đáp án là: B. 2. </s> | [
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1,
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<s> Chọn đáp án đúng với câu hỏi: Ở nước ta vùng đồi bát úp tập trung có nhiều ở tỉnh nào sau đây?
A. Bắc Ninh.
B. Nam Định.
C. Sơn La.
D. Phú Thọ. Đáp án là: D. Phú Thọ </s> | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Choose the word which is stressed differently from the rest.
A. reunion
B. ceremony
C. performance
D. procession Đáp án là: B. ceremony </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Việt Nam rút ra bài học kinh nghiệm gì từ sự phát triển kinh tế của các nước tư bản sau Chiến tranh thế giới thứ hai?
A. Ứng dụng các thành tựu khoa học-kĩ thuật.
B. Khai thác và sử dụng hợp lí nguồn tài nguyên.
C. Tăng cường x... | [
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30... | [
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1,
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1... |
<s> Chọn đáp án đúng với câu hỏi: Hầu hết cây trồng nhiệt đới quang hợp tốt nhất ở nhiệt độ 20-30°C, khi nhiệt độ xuống dưới 0°C và cao hơn 40°C, cây ngừng quang hợp. Kết luận đúng là khoảng nhiệt độ 1.20 - 30°C được gọi là giới hạn sinh thái 2.20 - 30°C đượ... | [
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1,
1,
1,
1,
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1... |
<s> Chọn đáp án đúng với câu hỏi: Hội nghị Ban Chấp hành Trung ương Đảng Lao động Việt Nam lần thứ 24 (tháng 9/1975) đã đề ra nhiệm vụ
A. xây dựng chủ nghĩa xã hội ở miền Bắc.
B. thực hiện đường lối đổi mới, đi lên chủ nghĩa xã hội.
C. hoàn thành thống nhất... | [
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<s> Chọn đáp án đúng với câu hỏi: Khi thủy phân hoàn toàn tripanmitin trong môi trường kiềm ta thu được sản phẩm là
A. C 17 H 35 COOH và glixerol
B. C 15 H 31 COONa và glixerol
C. C 15 H 31 COOH và glixerol
D. C 17 H 35 COONa và glixerol Đáp án là: B. C 15 H 31 COONa và glixerol </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Lai một tính trạng trong trường hợp trội hoàn toàn và trội không hoàn toàn giống nhau ở tỉ lệ
A. kiểu gen F 1 và F 2
B. kiểu gen và kiểu hình F 2
C. kiểu gen và kiểu hình F 2
D. kiểu hình F 1 và F 2 Đáp án là: A. kiểu gen F 1 và F 2 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Ủ 10 hạt ngô (các hạt đều có khả năng nảy mầm) trong hai ngày, sau đó tách lấy phôi. Cho 5 phôi vào ống nghiệm, đun sôi cách thủy trong 5 phút. Tiến hành ngâm cả 10 phôi lên kính hiển vi để quan sat, mẫu thí nghiệm có màu xanh là
A. Cả ... | [
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<s> Chọn đáp án đúng với câu hỏi: Tổng số hạt mang điện trong ion AB 3 2- bằng 82. Số hạt mang điện trong nhân nguyên tử A nhiều hơn số hạt mang điện trong nhân của nguyên tử B là 8. Số hiệu nguyên tử A và B (theo thứ tự) là
A. 6 và 8
B. 13 và 9
C. 16 và 8
D. 14 và 8 Đáp... | [
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<s> Chọn đáp án đúng với câu hỏi: Trong các phân xưởng dệt, người ta thường treo các tấm kim loại nhiễm điện ở trên cao. Việc làm này có tác dụng:
A. Làm cho nhiệt độ trong phòng luôn ổn định.
B. Chúng có tác dụng hút các bụi bông lên bề mặt của chúng, làm cho kh... | [
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<s> Chọn đáp án đúng với câu hỏi: Cho đoạn mạch xoay chiều gồm tụ C, cuộn dây có độ tự cảm L và điện trở trong r. Điện áp hai đầu mạch có tần số góc ω thỏa mãn hệ thức LC ω 2. Quan hệ giữa điện áp hai đầu mạch u và cường độ dòng điện trong mạch i là:
A. u có ... | [
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<s> Chọn đáp án đúng với câu hỏi: Cho sơ đồ chuyển hoá sau, trong đó Z là buta-1,3-đien, E là sản phẩm chính: Tinh bột → X → Y → Z → 1 : 1 + HBr, t o E → + NaOH, t o F → + CH 3 COOH, H 2 SO 4 dac G Công thức cấu tạo đúng của G là
A. CH 3 COOCH 2 CH=CHCH 3.
B. CH 3 COOCH(CH 3 )CH=CH 2.
C. CH 3 CO... | [
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<s> Chọn đáp án đúng với câu hỏi: Đảng Cộng sản Trung Quốc xác định trọng tâm của công cuộc cải cách, mở cửa là gì?
A. đổi mới kinh tế, chính trị đồng bộ.
B. lấy đổi mới chính trị là nền tảng.
C. lấy phát triển kinh tế làm trọng tâm.
D. lấy đổi mới chính tr... | [
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1,
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1,
1,
1,
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<s> Chọn đáp án đúng với câu hỏi: Thắng lợi của phong trào giải phóng dân tộc sau Chiến tranh thế giới thứ hai là gì?
A. Hệ thống thuộc địa và chế độ phân biệt chủng tộc sụp đổ.
B. Hệ thống thuộc địa sụp đổ.
C. Chế độ phân biệt chủng tộc sụp đổ.
D. Chủ n... | [
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207,
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865,
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2723... | [
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<s> Chọn đáp án đúng với câu hỏi: Mark the letter A, B, C, or D to indicate the underlined part that needs correction in each of the following questions. Lack of animal protein in the human diet is a serious cause of the malnutrition.
A. Lack of
B. in
C. serious
D. of the Đáp án là: D. of the </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Giải bất phương trình f^'(x)<g'(x), với f(x)=x^3+x^2−1/2; g(x)=2/3x^3+1/2x^2+2x
A. S = (1; 2)
B. S= (-2; 1)
C. S = ( -1; 2)
D. S= (-2; -1) Đáp án là: B. S= (-2; 1) </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Cho tam giác ABC có a = 3, b = 4, c = 5. Tính diện tích tam giác ABC.
A. 6√(2)
B. 6
C. 12
D. 8 Đáp án là: B. 6 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Cho hàm số y=√(3x−x^2). Hàm số đồng biến trên khoảng nào?
A. (0;3/2)
B. (0;3)
C. (3/2;3)
D. (−∞;3/2) Đáp án là: A. (0;3/2) </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Điểm chung trong nguyên nhân làm cho kinh tế phát triển giữa Tây Âu với Mĩ và Nhật Bản là?
A. Người lao động có tay nghề cao
B. Tài năng của giới lãnh đạo và kinh doanh
C. Gây chiến tranh xâm lược Việt Nam và Triều Tiên
D. Áp dụng nh... | [
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<s> Chọn đáp án đúng với câu hỏi: Các tác phẩm của tác giả nào dưới đây được Lê-nin đánh giá như “tấm gương phản chiếu cách mạng Nga”?
A. Sê-khốp
B. Pu-skin
C. Lép Tôn-xtôi
D. Trai-cốp-xki Đáp án là: C. Lép Tôn-xtôi </s> | [
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<s> Chọn đáp án đúng với câu hỏi: It often happens when they are students and they have to do a part-time job in order to make ( 46) ___ meet
A. bits
B. lines
C. pieces
D. ends Đáp án là: D. ends </s> | [
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739,
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526,
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26... | [
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<s> Chọn đáp án đúng với câu hỏi: Kế hoạch "đánh nhanh thắng nhanh" của Pháp bị thất bại sau cuộc tấn công
A. miền Tây
B. miền Đông
C. Đà Nẵng
D. Gia Định Đáp án là: C. Đà Nẵng </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. mass
B. trash
C. gather
D. wash Đáp án là: D. wash </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Phần trắc nghiệm Dãy núi cao nhất châu Á là dãy núi nào sau đây?
A. Thiên Sơn
B. Hi-ma-lay-a
C. Côn Luân
D. An-Tai Đáp án là: B. Hi-ma-lay-a </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Hai lực nào sau đây gọi là hai lực cân bằng?
A. Hai lực cùng phương, cùng chiều, mạnh như nhau tác dụng lên hai vật khác nhau.
B. Hai lực cùng phương, ngược chiều, mạnh như nhau tác dụng lên hai vật khác nhau.
C. Hai lực cùng phương, cu... | [
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<s> Chọn đáp án đúng với câu hỏi: Dung dịch Fluorêxêin hấp thụ ánh sáng có bước sóng 0,49 m m và phát ra ánh sáng có bước sóng 0,52 m m, người ta gọi hiệu suất của sự phát quang là tỉ số giữa năng lượng ánh sáng phát quang và năng lượng ánh sáng hấp thụ. Biết h... | [
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<s> Chọn đáp án đúng với câu hỏi: The word “ vehicles ” in the first paragraph may be replaced by _ _____ ___.
A. means
B. methods
C. ways
D. instruments Đáp án là: A. means </s> | [
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1,
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<s> Chọn đáp án đúng với câu hỏi: Loài động vật nào dưới đây có đuôi dài, ưa sống ở những nơi khô ráo, thích phơi nắng, có tập tính bò sát thân và đuôi vào đất?
A. cá cóc Tam Đảo.
B. thạch sùng.
C. thằn lằn bóng đuôi dài.
D. ếch đồng. Đáp án là: C. thằn lằn bó... | [
1,
1,
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29876,
29871,
30128,
29976,
29886,
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29871,
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<s> Chọn đáp án đúng với câu hỏi: This is the (62)........... of the dwelling ranks of female mobile-phone users
A. vision
B. vista
C. view
D. conception Đáp án là: C. view </s> | [
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<s> Chọn đáp án đúng với câu hỏi: The word “ them ” means
A. animals
B. minutes
C. people
D. water Đáp án là: A. animals </s> | [
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<s> Chọn đáp án đúng với câu hỏi: She wanted to buy a house _______ in the suburbs.
A. which was located
B. was located
C. which it was located
D. whose was located Đáp án là: A. which was located </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Dạng đột biến nào sau đây làm thay đổi số lượng gen trong nhóm gen liên kết? I. Đột biến mất đoạn II. Đột biến lặp đoạn. III. Đột biến đảo đoạn IV. Đột biến chuyển đoạn trên cùng một nhiễm sắc thể.
A. 2
B. 3
C. 1
D. 4 Đáp án là: A... | [
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<s> Chọn đáp án đúng với câu hỏi: Hiệu điện thế giữa hai đầu đoạn mạch có dạng u = 200cos100 π t V. Hiệu điện thế hiệu dụng giữa hai đầu đoạn mạch xấp xỉ bằng
A. 100 V
B. 200 V
C. 141 V
D. 280 V Đáp án là: C. 141 V </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Roget’s Thesaurus, a collection of English words and phrases, was originally arranged by the ideas they express rather than by alphabetical order
A. as well as
B. instead of
C. restricted
D. unless Đáp án là: B. instead of </s> | [
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9272,
300,
30010,
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498,
267,
6698,
375,
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263,
4333,
310... | [
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<s> Chọn đáp án đúng với câu hỏi: Âm mưu chủ yếu của Mĩ và chính quyền Sài Gòn trong thủ đoạn dồn dân lập “ấp chiến lược” là nhằm
A. củng cố quyền lực cho chính quyền Sài Gòn.
B. xây dựng miền Nam thành những khu biệt lập để dễ kiểm soát.
C. đẩy lực lươ... | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Students.................... wear uniforms at school. It is a rule.
A. should
B. must
C. have to
D. ought to Đáp án là: C. have to </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Từ vị trí A, một vật được ném ngang với tốc độ v 0 = 2 m/s. Sau đó 1s, tại vị trí B có cùng độ cao với A người ta ném thẳng đứng một vật xuống dưới với tốc độ ban đầu v ' 0. Biết AB = 6 m và hai vật gặp nhau trong quá trình ... | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Chất nào sau đây có nhiệt độ sôi thấp nhất?
A. Propan-l-ol
B. Phenol
C. Đimetyl xeton
D. Exit etanoic Đáp án là: C. Đimetyl xeton </s> | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Điểm nổi bật trong chính sách Chính sách kinh tế mới về nông nghiệp là
A. Tiếp tục chế độ trưng thu lương thực thừa
B. Thay thế chế độ trưng thu lương thực thừa bằng thu thuế lương thực
C. Thực hiện đồng thời chế độ tru... | [
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1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Một cơ thể động vật có kiểu gen A b a B, khi theo dõi 2000 tế bào sinh tinh trong điều kiện thí nghiệm, người ta phát hiện có 360 tế bào có xảy ra hoán vị giữa A và B. Tỉ lệ giao tử A b và khoảng cách giữa A và b lần lượt là
A. 4... | [
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<s> Chọn đáp án đúng với câu hỏi: Các trận động đất xảy ra với cường độ mạnh thường xảy ra ở tỉnh nào sau đây?
A. Điện Biên.
B. Hà Giang.
C. Quảng Ninh.
D. Yên Bái. Đáp án là: A. Điện Biên. </s> | [
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1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Loài dưới đây có cặp NST XX ở giới cái và cặp NST XY ở giới đực là:
A. Bò sát
B. Ếch nhái
C. Tinh tinh
D. Bướm tằm Đáp án là: C. Tinh tinh </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,
4309,
29874,
30712,
29875,
868,
207,
158,
29877,
207,
158,
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: Điều gì đúng với yếu tố ngẫu nhiên và chọn lọc tự nhiên 1. Chúng đều là các nhân tố tiến hóa 2. Chúng đều là các quá trình hoàn toàn ngẫu nhiên 3. Chúng đều dẫn đến sự thích nghi 4. Chúng đều làm giảm đa dạng di truyền của qu... | [
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,
4005,
30712,
29871,
30128,
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: Một tụ điện phẳng có điện dung 7,0 nF chứa đầy điện môi. Diện tích mỗi bản bằng 15 c m 2 và khoảng cách giữa hai bản bằng 10 - 5 m. Hỏi hằng số điện môi của chất điện môi trong tụ điện?
A. 5,28
B. 2,56
C. 4,53
D. 3,63 Đáp án là: A. 5,28... | [
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,
5291,
31214,
29871,
30128,
347,
31214,
315... | [
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
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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