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<s> Chọn đáp án đúng với câu hỏi: Teenagers also spend a huge amount of time watching YouTube (38)___________ there is so much entertaining content to watch.
A. now that
B. but
C. because of
D. although Đáp án là: A. now that </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Cho dãy các chất sau: (1) glucozơ, (2) metyl fomat, (3) vinyl axetat, (4) axetanđehit. Số chất trong dãy có phản ứng tráng gương là
A. 3
B. 1
C. 4
D. 2 Đáp án là: A. 3 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: My sister and I often ____________ (9) there after school.
A. plays
B. playing
C. to play
D. play Đáp án là: D. play </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Lãnh đạo cuộc đấu tranh chống lại chế độ độc tài thân Mĩ của nhân dân Cu – ba là:
A. A- gien - đê.
B. Phi – đen Cat – xtơ – rô.
C. Nen – xơn Man – đê – la.
D. Tút – xanh Lu – vec – tuy – a. Đáp án là: B. Phi – đen Cat – xtơ – rô. </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Many applicants find a job interview__________if they are not well-prepared for it.
A. impressive
B. stressful
C. threatening
D. time-consuming Đáp án là: B. stressful </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Hỗn hợp E gồm một đipeptit, một tripeptit và một tetrapeptit (đều mạch hở) có tỉ lệ số mol tương ứng là 2 : 1 : 1. Thủy phân hoàn toàn một lượng E, thu được 15 gam glyxin, 14,24 gam alanin và 9,36 gam valin. Mặt khác, đốt cháy hoàn toàn... | [
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<s> Chọn đáp án đúng với câu hỏi: Căn cứ vào Atlat Địa lí Việt Nam trang 12, cho biết phần lớn diện tích rừng ngập mặn ven biển nước ta tập trung chủ yếu ở vùng nào sau đây?
A. Đồng bằng sông Hồng.
B. Bắc Trung Bộ.
C. Đông Nam Bộ.
D. Đồng bằng sông Cửu Long. Đá... | [
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<s> Chọn đáp án đúng với câu hỏi: Pha sáng của quang hợp có vai trò:
A. Khử CO 2 nhờ ATP và NADPH để tổng hợp chất hữu cơ
B. Oxi hoá nước để sử dụng H + và điện tử cho việc hình thành ATP, NADPH và giải phóng oxi
C. Quang phân li nước tạo H +, điện tử và giải phóng... | [
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<s> Chọn đáp án đúng với câu hỏi: Lấy 15,7 gam hỗn hợp Al, Zn (tỉ lệ mol 1:2) tác dụng với dung dịch HNO 3 dư thì thu được 15,68 lít (đktc) khí X là sản phẩm khử duy nhất. Xác định X?
A. NO 2
B. N 2
C. NO
D. N 2 O Đáp án là: A. NO 2 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Hình thức sinh sản mà các cơ thể mới được hình thành từ các bào tử của cây mẹ là gì?
A. Sinh sản bằng bào tử.
B. Sinh sản phân đôi.
C. Sinh sản sinh dưỡng.
D. Sinh sản tái sinh. Đáp án là: A. Sinh sản bằng bào tử. </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Hoà tan h ế t 9,6 gam kim loại M trong dung dịch H 2 SO 4 đ ặc, nóng, thu được SO 2 là sản phẩm khử duy nhất. Cho toàn bộ lượng SO 2 này hấp thụ hết vào 0,5 lít dung dịch NaOH 0,6M, sau phản ứng đem cô cạn dung dịch được 18,9 gam chất rắn.... | [
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<s> Chọn đáp án đúng với câu hỏi: Dung dịch chất X phản ứng với H 2 SO 4 loãng thu được kết tủa trắng và dung dịch Y. Dung dịch Y hòa tan Cu, thu được khí không màu và hóa nâu ngoài không khí. Chất X là:
A. Ba(NO 3 ) 2
B. KNO 3
C. BaCl 2
D. CuSO 4 Đáp án là: A. Ba(NO 3 ) 2 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: It’s almost impossible to predict the last score as the two teams that are selected carefully among our students are neck and neck at every moment of the match.
A. long
B. beside
C. forward
D. close Đáp án là: D. close </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Find the word which has a different sound in the part underlined.
A. th u mb
B. sh ou lder
C. p ou ltry
D. d ow n Đáp án là: A. th u mb </s> | [
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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: Biểu thức tính suất điện động tự cảm là
A. etc = - L. ∆ l ∆ t.
B. etc = L.I.
C. etc = 4p.10-7. S.
D. etc = - L. ∆ t ∆ l. Đáp án là: A. etc = - L. ∆ l ∆ t. </s> | [
1,
1,
29871,
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29876,
29871,
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29886,
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266,
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207,
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1,
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1,
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1,
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1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Find the word which has a different sound in the part underlined.
A. m o reover
B. en o ugh
C. b o ring
D. o ff Đáp án là: B. en o ugh </s> | [
1,
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263,
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278,
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1... |
<s> Chọn đáp án đúng với câu hỏi: Colleagues became ______ when he started acting strangely.
A. dubious
B. sceptical
C. suspicious
D. doubtful Đáp án là: C. suspicious </s> | [
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85... | [
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1,
1,
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<s> Chọn đáp án đúng với câu hỏi: It’s said that _______ Japanese have a very high life expectancy.
A. a
B. an
C. the
D. ∅ Đáp án là: C. the </s> | [
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739,
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1497,
393,
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1649,
10369,
505,
263,
140... | [
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1,
1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Cho các chất: etyl axetat, anilin, ancol etylic, axit acrylic, phenol, phenylamoni clorua, ancol benzylic, p-crezol. Số chất tác dụng được với dung dịch NaOH là
A. 4
B. 6
C. 5
D. 3 Đáp án là: C. 5 </s> | [
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1,
1,
1,
1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Nhân tố chủ yếu chi phối nền chính trị thế giới và các quan hệ quốc tế trong hơn phần lớn thời gian nửa sau thế kỉ XX là
A. Trật tự hai cực Ianta.
B. Chiến tranh thế giới thứ hai.
C. Liên hợp quốc.
D. Phong trào không liên kế... | [
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1,
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521,
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207,
140,
8... | [
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1,
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1... |
<s> Chọn đáp án đúng với câu hỏi: Chính sách đối ngoại nào được Mĩ áp dụng ở khu vực Mĩ Latinh trong những năm 1934 - 1939?
A. “Ngoại giao láng giềng”.
B. “Cam kết và mở rộng”.
C. “Láng giềng thân thiện”.
D. “Trỗi dậy hòa bình”. Đáp án là: C. “Láng giềng thân thiện”. </s... | [
1,
1,
29871,
678,
30975,
29876,
29871,
30128,
29976,
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1715,
29871,
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30030,
865,
325,
31280,
29875,
274,
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29875,
29901,
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305,
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30128,
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315... | [
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1,
1,
1,
1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Khu vực Đông Nam Á là cầu nối giữa hai châu lục
A. châu Á và châu Âu.
B. châu Á và châu Đại Dương.
C. châu Âu và châu Đại Dương.
D. châu Á và châu Mĩ. Đáp án là: B. châu Á và châu Đại Dương. </s> | [
1,
1,
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1,
1,
1,
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1... |
<s> Chọn đáp án đúng với câu hỏi: Mary put on her scarf _______she_______not get cold.
A. so that / will
B. to / would
C. so as to / will
D. so that / would Đáp án là: D. so that / would </s> | [
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1,
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6182,
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1649,
11360,
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2... | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: An inspiring speaker, Reverend Jackson always manages to _____ the best in his congregation.
A. bring up
B. bring out
C. bring over
D. bring across Đáp án là: B. bring out </s> | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: favorite/ TV/ comedy/ My/ is/ program.
A. My favorite TV program is comedy.
B. My favorite TV program comedy is.
C. My favorite comedy TV program is.
D. My favorite comedy is TV program. Đáp án là: A. My favorite TV program is comedy. </s> | [
1,
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1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Đảng Cộng sản Việt Nam ra đời là sự chuẩn bị tất yếu đầu tiên có tính chất quyết định vì
A. Đã chấm dứt thời kỳ khủng hoảng về đường lối và giai cấp lãnh đạo.
B. Đáp ứng căn bản nguyện vọng của các giai cấp trong xã hội.... | [
1,
1,
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1... |
<s> Chọn đáp án đúng với câu hỏi: My friend John,... works in the city bank, earns more money than I do.
A. whom
B. who
C. which
D. that Đáp án là: B. who </s> | [
1,
1,
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1,
1,
1,
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<s> Chọn đáp án đúng với câu hỏi: "Do you think the book is too expensive? - "Yes, it's not ______ what we paid for it."
A. worthy
B. worth of
C. worth
D. valuable Đáp án là: C. worth </s> | [
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1,
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678,
30975,
29876,
29871,
30128,
29976,
29886,
29871,
1715,
29871,
30128,
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865,
325,
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29875,
274,
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29875,
29901,
376,
6132,
366,
1348,
278,
3143,
338,
2086,
19390,
29973,
448,
376,... | [
1,
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1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Một ngẫu lực gồm hai vecto lực F 1 và F 2 có F 1 = F 2 = F và có cánh tay đòn d. Momen của ngẫu lực này là
A. (F 1 – F 2 ).d.
B. 2Fd.
C. Fd
D.Chưa biết được vì còn phụ thuộc vào vị trí của trục quay. Đáp án là: C. Fd </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Vùng nông nghiệp và công nghiệp chế biến nào sau đây có trình độ thâm canh nhìn chung còn thấp?
A. Duyên hải Nam Trung Bộ.
B. Đông Nam Bộ.
C. Trung du và miền núi Bắc Bộ.
D. Duyên hải Nam Trung Bộ. Đáp án là: C. Trung du và miền núi Bắc B... | [
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<s> Chọn đáp án đúng với câu hỏi: Một khung dây phẳng diện tích S, đặt trong từ trường đều có cảm ứng từ B, góc giữa đường sức từ và mặt phẳng khung dây là α. Từ thông qua khung dây được tính theo công thức
A. Ф = BS.cosα.
B. Ф = BS.sinα
C. Ф = BS.tanα
D. Ф = BS. Đáp á... | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Đặt điện áp u = U 2 cos ( ω t + φ u ) (V) vào hai đầu đoạn mạch có tổng trở Z thì dòng điện qua mạch là i = I 2 cos ( ω t + φ i ) (A). Biểu thức định luật Ôm áp dụng cho các giá trị hiệu dụng là
A. I = U 2 Z
B. I = U Z
C. I = U Z 2
D. I = U Z Đáp á... | [
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<s> Chọn đáp án đúng với câu hỏi: Why does the author mention "artistic, political, or pedagogic communication" in line 14-15?
A. To introduce the idea of self-image
B. As examples of public performance
C. As examples of basic styles of communication
D. To contrast them to singing Đáp án là: C. As examples of basic sty... | [
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<s> Chọn đáp án đúng với câu hỏi: Khi nói về quang phổ liên tục phát biểu nào sau đây là đúng?
A. Phụ thuộc vào bản chất và nhiệt độ của nguồn phát
B. Phụ thuộc vào nhiệt độ của nguồn phát mà không phụ thuộc vào bản chất của nguồn phát
C. Không phụ thuộc vào b... | [
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<s> Chọn đáp án đúng với câu hỏi: Chuyển động thẳng đều là chuyển động thẳng trong đó
A. vận tốc có độ lớn không đổi theo thời gian.
B. độ dời có độ lớn không đổi theo thời gian.
C. quãng đường đi được không đổi theo thời gian.
D. tọa độ không đổi theo thờ... | [
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<s> Chọn đáp án đúng với câu hỏi: Cho hai số phức z_1=2+3i, z_2=−4−5i. Số phức z=z_1+z_2 là
A. z = -2 - 2i
B. z = -2 + 2i
C. z = 2 + 2i
D. z = 2 - 2i Đáp án là: A. z = -2 - 2i </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Các nước đới ôn hòa nhập khẩu nguyên liệu, nhiên liệu trong sản xuất công nghiệp ở:
A. nguồn nguyên, nhiên liệu có sẵn.
B. nhập khẩu từ các nước đới nóng
C. nhập khẩu từ các nước đới lạnh.
D. xâm chiếm từ các nước th... | [
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<s> Chọn đáp án đúng với câu hỏi: Từ đầu thế kỉ X đến đầu thế kỉ XVI, trên danh nghĩa, vùng đất Nam Bộ thuộc quyền quản lí của vương quốc nào?
A. Chân Lạp.
B. Phù Nam.
C. Chăm-pa.
D. Đại Việt. Đáp án là: A. Chân Lạp. </s> | [
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<s> Chọn đáp án đúng với câu hỏi: There are many different kinds of books,so you can choose a crime novel or an autobiography,or a book ( 18 )________ gives you interesting information.
A.whose
B. which
C. what
D. when Đáp án là: B. which </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Chọn câu sai. Khi xét đường đi của tia sáng qua lăng kính đặt trong không khí ta thấy:
A. góc ló phụ thuộc góc tới
B. góc ló phụ thuộc chiết suất của lăng kính
C. góc ló không phụ thuộc góc ở đỉnh của lăng kính
D. góc lệch của tia sa... | [
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<s> Chọn đáp án đúng với câu hỏi: Hòa tan hoàn toàn hỗn hợp Al và Al 2 O 3 trong 200 ml dung dịch HCl nồng độ a mol/l, thu được dung dịch X. Cho từ từ dung dịch NaOH 1M vào X, lượng kết tủa Al(OH) 3 (m gam) phụ thuộc vào thể tích dung dịch NaOH (V ml) được biểu diễn bằng đo... | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Trong không gian với hệ tọa độ Oxyz, cho điểm A(-2;3;1). Hình chiếu vuông góc của điểm A lên trục Ox có tọa độ là:
A. (2,0,0)
B. (-2,0,0)
C. (0,3,1)
D. (0,-3,-1) Đáp án là: B. (-2,0,0) </s> | [
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298... | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Cho đường thẳng (d): –3x – y + 5 = 0, đường thẳng (d’): –3x – y – 2 = 0. Tìm tọa độ vectơ u→ có giá vuông góc với đường thằng (d) để (d’) là ảnh của (d) qua Tu_→
A.(−3;−1)
B.(−6;−2)
C.(−9;−3)
D. Đáp án khác Đáp án là: D. Đáp án khác </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Xà phòng hóa hoàn toàn 22,2 gam hỗn hợp gồm este HCOOC 2 H 5 và CH 3 COOCH 3 bằng dung dịch NaOH 1M (đun nóng). Thể tích dung dịch NaOH tối thiểu cần dùng là:
A. 150 ml
B. 300 ml
C. 200 ml
D. 400 ml Đáp án là: B. 300 ml </s> | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Sản phẩm X của phản ứng sau đây là chất nào? CH 3 CH(OH)CH 3 → 170 0 C H 2 S O 4 d a c X + H 2 O
A. CH 2 =C=CH 2.
B. CH 3 -CH 2 -CH 3.
C. CH 2 =CH 2.
D. CH 3 -CH=CH 2. Đáp án là: D. CH 3 -CH=CH 2 </s> | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Dãy phân tử nào sau đây có liên kết cộng hoá trị không phân cực?
A. N 2, Cl 2, HCl, H 2, F 2.
B. N 2, Cl 2, HI, H 2, F 2.
C. N 2, Cl 2, H 2 O, H 2, F 2.
D. N 2, Cl 2, I 2, H 2, F 2. Đáp án là: D. N 2, Cl 2, I 2, H 2, F 2 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: According to the passage, how can a person earn more money?
A. By stopping high school
B. By staying in school for a long time
C. By working a part-time job in high school
D. By starting a small business Đáp án là: B. By staying in school for a long time </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Cho tam giác ABC với độ dài 3 cạnh BC, AC, AB lần lượt là a, b, c. Khẳng định nào dưới đây đúng?
A. a^2 = b^2 + c^2 + 2bcsinA;
B. a^2 = b^2 + c^2 – 2bccosA;
C. a^2 = b^2 + c^2 – 2acsinA;
D. a^2 = b^2 + c^2 + 2abcosA. Đáp án là: B. a^2 = b^2 + c^2 – 2bccosA; </s> | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Trong chuông báo động gắn vào cửa để khi cửa bị mở thì chuông kêu, rơle điện từ có tác dụng từ?
A. Làm bật một lò xo đàn hồi gõ vào chuông.
B. Đóng công tắc của chuông điện làm cho chuông kêu.
C. Làm cho cánh cửa mở đập mạnh ... | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Cuối thế kỉ XIX - đầu thế kỉ XX các nước đế quốc “trẻ” được hình thành, bao gồm
A. Anh, Pháp, Đức.
B. Mĩ, Đức, Nhật
C. Mĩ, Nga, Pháp
D. Mĩ, Anh, Pháp. Đáp án là: B. Mĩ, Đức, Nhật </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Manufacturers tended to employ women because _
A. women demanded less than men
B. they did not have to pay for high insurance
C. they could cheat them more easily
D. they did not have to pay high wages Đáp án là: D. they did not have to pay high wages </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Chiều dài kim giây của một đồng hồ gấp đôi chiều dài kim phút và gấp bốn lần chiều dài kim giờ của nó. Tỉ số tốc độ dài điểm ở đầu kim phút và diêm ở đầu kim giờ là
A. 24
B. 48.
C. 32
D. 16. Đáp án là: A. 24 </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 primary stress is NOT placed on the third syllable.
A. understand
B. concentrate
C. recommend
D. introduce Đáp án là: B. concentrate </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Experts estimate that 95 percent of dieters return to their starting weight, or even (6) ________weight.
A. lose
B. gain
C. put
D. reduce Đáp án là: B. gain </s> | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Số bội giác của kính hiên vi ngắm chừng ở vô cực có (các) tính chất nào sau đây?
A. Tỉ lệ thuận với tiêu cự vật kính.
B. Tỉ lệ thuận với tiêu cự thị kính.
C. Tỉ lệ thuận với độ dài quang học của kính.
D. Tỉ lệ nghịch vơ... | [
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1,
1,
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1,
1,
1,
1,
1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Viết số 489236 thành tổng theo mẫu:67812 = 60000 + 7000 + 800 + 10 + 2
A. 489236 = 40000 + 800000 + 9000 + 200 + 60 + 3
B. 489236 = 400000 + 80000 + 900 + 200 + 30 + 6
C. 489236 = 40000 + 800000 + 9000 + 200 + 30 + 6
D. 489236 = 400000 + 80000 + 9000 + 200 + 30 + 6 Đáp án là: D. 489236... | [
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<s> Chọn đáp án đúng với câu hỏi: Select the antonym of the following bold and underlined word in each sentence in the unit Why is computer a miraculous device?
A. ordinary
B. improper
C. false
D. ugly Đáp án là: A. ordinary </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Điền số thích hợp vào chỗ trống: 9 990;...; 9 994; 9 996; 9 998; 10 000.
A. 9 991
B. 9 992
C. 9 993
D. 9 995 Đáp án là: B. 9 992 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Sáu nuớc thành viên ban đầu của EU là:
A. Pháp, Đức, Ý, Bỉ, Hà Lan, Luc-xăm-bua
B.Anh, Tây Ban Nha, Ý, Bỉ, Hà Lan, Luc-xăm-bua
C.Pháp, Bồ Đào Nha, Hi Lạp, Hà Lan, Luc-xăm-bua,Thụy Sĩ
D. Đức, Ý, Bỉ, Phần Lan, Thụy Điển, Anh. Đáp án là: A. Pháp, Đu... | [
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<s> Chọn đáp án đúng với câu hỏi: b) 2/3của 18 là:
A. 6m;
B. 12m;
C. 18m;
D. 27m Đáp án là: B. 12m; </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Don't drive into that street. It is.............one-way street.
A. a
B. an
C. the
D. X Đáp án là: A. a </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Năng lượng trong máy điện gió được biến đổi như thế nào?
A. Nhiệt năng của gió thực hiện công làm quay tuabin của động cơ, chuyển hóa thành điện năng.
B. Cả 3 phương án đều sai.
C. Năng lượng của gió chuyển hóa trực tiếp thàn... | [
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<s> Chọn đáp án đúng với câu hỏi: Chọn số liệu thích hợp để điền vào chỗ trống trong câu sau : Các nhà thực vật học nước ta đã thống kê được trên... loài thực vật quý hiếm ở Việt Nam.
A. 500
B. 200
C. 300
D. 100 Đáp án là: C. 300 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Các quốc gia cổ Đông Nam Á hình thành và phát triển trong khoảng thời gian nào?
A. Khoảng đầu Công nguyên đến thế kỉ VII
B. Khoảng những thế kỉ tiếp giáp Công nguyên
C. Khoảng từ thế kỉ VII đến thế kỉ X
D. Khoảng những thế kỉ tiế... | [
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<s> Chọn đáp án đúng với câu hỏi: Cho a mol bột kẽm vào dung dịch có hòa tan b mol Fe(NO 3 ) 3. Tìm điều kiện liên hệ giữa a và b để sau khi kết thúc phản ứng không có kim loại.
A. a ≥ 2b
B. b > 3a
C. b ≥ 2a
D. b = 2a/3 Đáp án là: C. b ≥ 2a </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Hai dòng điện I 1 và I 2 chạy trong hai dây dẫn thẳng, nằm trong mặt phẳng hình vẽ và trực giao nhau. Hướng của lực từ do dòng điện I 1 tác dụng lên dòng điện I 2
A. vuông góc với mặt phẳng hình vẽ, chiều từ ngoài vào trong
B. vuôn... | [
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<s> Chọn đáp án đúng với câu hỏi: Ý nghĩa của những thắng lợi trên mặt trận quân sự trong đông-xuân 1964-1965 là
A. Thắng lợi quân sự lớn, đánh dấu sự sụp đổ hoàn toàn của chiến lược “Chiến tranh đặc biệt” ở miền Nam Việt Nam.
B. Thắng lợi đánh dấu sự su... | [
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<s> Chọn đáp án đúng với câu hỏi: Tổ chức nào ra đời đánh dấu bước ngoặt vĩ đại của Cách mạng Việt Nam?
A. An Nam Cộng sản đảng.
B. Đảng Cộng sản Việt Nam.
C. Đông Dương Cộng sản đảng.
D. Đông Dương Cộng sản liên đoàn. Đáp án là: B. Đảng Cộng sản Việt Nam. </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Đun nóng 29,2 gam Gly-Ala với lượng dư dung dịch NaOH, sau khi phản ứng xảy ra hoàn toàn thu được dung dịch chứa m gam muối. Giá trị của m là
A. 41,6
B. 33,6
C. 37,2
D. 45,2 Đáp án là: A. 41,6 </s> | [
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1,
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<s> Chọn đáp án đúng với câu hỏi: Khi nói về quan hệ cạnh tranh giữa các cá thể sinh vật trong tự nhiên, có bao nhiêu phát biểu sau đây là đúng? (1) Cạnh tranh giữa các cá thể trong quần thể không xảy ra do đó không ảnh hưởng đến số lượng và sự phân bố các cá t... | [
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540,
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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: Giả sử có bốn hệ sinh thái đều bị nhiễm độc chì (Pb) với mức độ như nhau. Trong hệ sinh thái có chuỗi thức ăn nào sau đây, con người bị nhiễm độc nhiều nhất
A. Tảo đơn bào => cá => người
B. Tảo đơn bào => động vật => phù du ... | [
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140,
480,
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207,
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1,
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1,
1,
1,
1,
1,
1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Cho hàm số y=(2x+m)/(x−1) ( m là tham số) thỏa mãn max(2;5)y=6. Mệnh đề nào dưới đây đúng?
A. m∈(−∞;−3)
B. m∈(1;4).
C. m∈(0;1)
D. m∈(4;7) Đáp án là: B. m∈(1;4). </s> | [
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1,
1,
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1... |
<s> Chọn đáp án đúng với câu hỏi: Đại hội lần thứ VII của Quốc tế Cộng sản đã xác định kẻ thù và nhiệm vụ trước mắt của cách mạng thế giới là
A. chống chủ nghĩa phát xít, bảo vệ hòa bình thế giới.
B. chống chủ nghĩa đế quốc, giành độc lập dân tộc.
C. c... | [
1,
1,
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865,
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29875,
29901,
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30250,
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31214,
29875,
5089,
31214,
31500,
29875,
425,
31... | [
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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: Khi nói về đột bi ến gen, phát biểu nào sau đây không đúng?
A. Đột bi ến gen là nhữ ng bi ến đổ i trong c ấu trúc củ a gen
B. Đ ột bi ến gen làm thay đổi vị trí của gen trên nhiễ m s ắ c th ể
C. Độ t bi ến gen làm xuấ t hi ện các ... | [
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1,
1,
1,
1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: According to paragraph 3, why did the author mention the figure of parents sheltering children?
A. To illustrate the immensity of the parental love for their children.
B. To emphasise that this type of logic inhibits teenagers from becoming more mature.
C. To demonstrate the contrast b... | [
1,
1,
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29876,
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865,
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274,
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298,
228,
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29875,
29901,
7579,
304,
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29941,
29892,
2020,
1258,
278,
4148,
3585,
... | [
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1,
1,
1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Choose the word with different stress from others
A. arrival
B. technical
C. proposal
D. approval Đáp án là: A. arrival </s> | [
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1,
1,
1,
1,
1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Cho dãy các chất: Fe(NO 3 ) 3, NH 4 Cl, (NH 4 ) 2 SO 4, NaCl, MgCl 2, FeCl 2, AlCl 3, CrCl 3. Số chất trong dãy tác dụng với lượng dư dung dịch Ba(OH) 2 tạo thành kết tủa là
A. 3
B. 5
C. 4.
D. 1 Đáp án là: C. 4. </s> | [
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2... | [
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1,
1,
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1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Vận tốc chuyển động của các phân tử có liên quan đến đại lượng nào sau đây?
A. Nhiệt độ của vật.
B. Trọng lượng riêng của vật
C. Khối lượng của vật.
D. Thể tích của vật. Đáp án là: A. Nhiệt độ của vật. </s> | [
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1,
1,
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1... |
<s> Chọn đáp án đúng với câu hỏi: The word “ unconventional ” in paragraph 2 could best be replaced by ____________.
A. common
B. unusual
C. well-known
D. infamous Đáp án là: B. unusual </s> | [
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1,
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1... |
<s> Chọn đáp án đúng với câu hỏi: Có một cái bể hình trụ cao 10dm với bán kính đáy 4 dm chứa đầy nước bị một thùng gỗ hình lập phương đóng kín rơi vào làm cho một lượng nước V tràn ra. Biết rằng cạnh thùng gỗ là 8dm và khỉ nó rới vào miệng bể, một đường chéo dài nhất của nó vuông góc với mặt bể, ba cạnh của thùng chạm ... | [
1,
1,
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315,
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274,
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289,
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298,
... | [
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1,
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1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Hình vẽ sau đây mô tả thí nghiệm điều chế và thu khí Y từ hỗn hợp rắn gồm CaCO 3 và CaSO 3 : Khí Y là
A. SO 2
B. H 2
C. CO 2
D. Cl 2 Đáp án là: C. CO 2 </s> | [
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1,
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1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Politicians _____ blame the media if they don’t win the election. They are so predictable.
A. variable
B. variety
C. various
D. invariably Đáp án là: D. invariably </s> | [
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6934,
14722,
903,
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1999,
420,
278,
5745,
565,
896,
1016,
30010... | [
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1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: In order to avoid boredom, the most important thing is to keep oneself ___________.
A. occupation
B. occupied
C. occupant
D. occupational Đáp án là: B. occupied </s> | [
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<s> Chọn đáp án đúng với câu hỏi: I'm always nervous when I'm______________ an exam.
A. taking
B. making
C. working
D. writing Đáp án là: A. taking </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Cho các thông tin về vai trò của các nhân tố tiến hoá như sau: (1) Trực tiếp làm thay đổi tần số alen và thành phần kiểu gen của quần thể theo một hướng xác định. (2) Không có khả năng tạo ra một đặc điểm mới cho quần thể. (3)... | [
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<s> Chọn đáp án đúng với câu hỏi: Các chất thải sinh ra từ quá trình trao đổi chất được vận chuyển vào?
A. Máu và cơ quan bài tiết.
B. Nước mô và mao mạch máu.
C. Tế bào, máu và đến cơ quan bài tiết.
D. Cơ quan bài tiết để thải ra ngoài Đáp án là: D. Cơ quan bài tie... | [
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<s> Chọn đáp án đúng với câu hỏi: Tác phẩm nào dưới đây không phải của tác giả Kim Lân?
A. Nên vợ nên chồng
B. Con chó xấu xí
C. O chuột
D. Làng Đáp án là: C. O chuột </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Người Chăm-pa đã xây dựng hệ thống chữ viết riêng trên cơ sở của
A. chữ La-tinh.
B. chữ Phạn.
C. chữ Kanji.
D. chữ Hangul. Đáp án là: B. chữ Phạn. </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Tổ chức nào dưới đây được coi là liên minh mang tính chất phòng thủ về quân sự và chính trị của các nước xã hội chủ nghĩa Đông Âu?
A. Tổ chức Hiệp ước Bắc Đại Tây Dương.
B. Cộng đồng các quốc gia độc lập.
C. Tổ chức H... | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Tính chất cơ bản của từ trường là:
A. gây ra lực từ tác dụng lên nam châm hoặc lên dòng điện đặt trong nó
B. gây ra lực hấp dẫn lên các vật đặt trong nó
C. gây ra lực đàn hồi tác dụng lên các dòng điện và nam châm đặt trong n... | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Xu thế toàn cầu hoá đặt ra cho các nước đang phát triển nhiều thách thức, chủ yếu là do các nước này
A. có trình độ sản xuất thấp.
B. có sự phân hoá giàu nghèo.
C. chưa có tính đoàn kết dân tộc.
D. chưa có bản sắc văn hoá dâ... | [
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<s> Chọn đáp án đúng với câu hỏi: Choose the best answer. She asked her boyfriend _________ best.
A. if dress he liked
B. which dress did he like
C. which dress he liked
D. which dress he likes Đáp án là: C. which dress he liked </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Một rượu X mạch hở không làm mất màu nước brom, để đốt cháy a lit hơi rượu X thì cần 2,5a lit oxi (ở cùng đk). CTCT của X là:
A. C 2 H 4 (OH) 2
B. C 3 H 6 (OH) 2
C. C 3 H 7 OH
D. CH 2 CH 3 OH Đáp án là: A. C 2 H 4 (OH) 2 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Vùng nào sau đây là vùng bất ổn của Trái Đất
A. Vị trí tách giãn giữa các mảng lục địa
B. Vị trí dồn ép giữa các mảng lục địa với nhau
C. Vị trí tiếp xúc các mảng đại dương và các mảng lục địa
D. Những vùng tiếp xúc của các mả... | [
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<s> Chọn đáp án đúng với câu hỏi: Khi lên men m kg ngô chứa 65% tinh bột với hiệu suất toàn quá trình là 80% thì thu được 5 lít rượu etylic 20 0 và V m 3 khí CO 2 (đktc). Cho khối lượng riêng của C 2 H 5 OH nguyên chất là 0,8 g/ml. Giá trị của m và V lần lượt là:
A. 2,8 va... | [
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<s> Chọn đáp án đúng với câu hỏi: Một động cơ điện trong vòng 1 giờ tiêu thụ điện năng là 5400 kJ. Công suất của dòng điện khi chạy qua động cơ trên có thể là giá trị nào sau đây?
A. P = 1500 W.
B. P = 1500 kW.
C. P = 1500 MW.
D. P = 1500 W.h. Đáp án là: A. P = 1500 W. </s> | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Có thể phân tích một chùm sáng trắng thành những chùm sáng màu khác nhau bằng cách cho chùm sáng trắng:
A. Qua một lăng kính hoặc qua một thấu kính hội tụ.
B. Qua một thấu kính hội tụ hoặc qua một thấu kính phân kì.
C. Phản xạ t... | [
1,
1,
29871,
678,
30975,
29876,
29871,
30128,
29976,
29886,
29871,
1715,
29871,
30128,
30030,
865,
325,
31280,
29875,
274,
30057,
29884,
298,
228,
190,
146,
29875,
29901,
3189,
30103,
278,
31500,
207,
140,
1374,
29874,
31500,
29876,
19538,
... | [
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
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: Axit axetic không tác dụng được với chất nào sau đây?
A. Na
B. NaOH
C. Cu(OH) 2.
D. CO 2 Đáp án là: D. CO 2 </s> | [
1,
1,
29871,
678,
30975,
29876,
29871,
30128,
29976,
29886,
29871,
1715,
29871,
30128,
30030,
865,
325,
31280,
29875,
274,
30057,
29884,
298,
228,
190,
146,
29875,
29901,
22523,
277,
4853,
7492,
413,
1251,
31500,
865,
11062,
30103,
29883,
... | [
1,
1,
1,
1,
1,
1,
1,
1,
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1,
1,
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1,
1,
1,
1,
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1,
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,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: According to paragraph 4, what is NOT one of the counter-measures mapped out by the superintendents?
A. Applying technological advancement to weaken the effect of noise disturbance.
B. Identify and manage critical places that are in urgent need for protection.
C. Placing regulations on... | [
1,
1,
29871,
678,
30975,
29876,
29871,
30128,
29976,
29886,
29871,
1715,
29871,
30128,
30030,
865,
325,
31280,
29875,
274,
30057,
29884,
298,
228,
190,
146,
29875,
29901,
7579,
304,
14880,
29871,
29946,
29892,
825,
338,
6058,
697,
310,
27... | [
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
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: Trọng tâm của cuộc Tổng tiến công và nổi dậy Xuân Mậu Thân năm 1968 là ở địa bàn nào?
A. Rừng núi.
B. Nông thôn.
C. Các đô thị.
D. Ven biển. Đáp án là: C. Các đô thị. </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,
8316,
31214,
865,
11062,
31500,
29885,
2723,
207,
140,
29874,
2723,
... | [
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
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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