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<s> Chọn đáp án đúng với câu hỏi: Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the other three in the position of primary stress in each of the following
A. notify
B. advocate
C. influence
D. interfere Đáp án là: D. interfere </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Cho m gam hỗn hợp gồm hai ancol no, đơn chức, kế tiếp nhau trong dãy đồng đẳng, tác dụng với CuO dư, nung nóng, thu được hỗn hợp X gồm khí và hơi có tỉ khối hơi so với H 2 là 13,75. Cho X phản ứng với lượng dư dung dịch AgNO 3 trong... | [
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<s> Chọn đáp án đúng với câu hỏi: In order to choose the (50) _______ course and location for you, we suggest you contact us to discuss your particular requirements.
A. exact
B. right
C. precise
D. fit Đáp án là: B. right </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Thang: “What do you think about the movie?” – Huong: “_______.”
A. Yes, let’s see
B. I can’t agree with you more
C. The best I’ve ever seen
D. I wish I could Đáp án là: C. The best I’ve ever seen </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Hai điện tích điểm được đặt cố định và cách điện trong một bình không khí thì hút nhau 1 lực là 42 N. Nếu đổ đầy dầu hỏa có hằng số điện môi 2,1 vào bình thì hai điện tích đó sẽ
A. hút nhau 1 lực bằng 42 N.
B. đẩy nhau một lu... | [
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<s> Chọn đáp án đúng với câu hỏi: Loại sản phẩm nào mà Pháp xuất khẩu nổi tiếng trên thế giới?
A. Đồ chơi cho trẻ em.
B. Rượu vang và nước hoa.
C. Hàng dệt, may.
D. Hóa chất. Đáp án là: B. Rượu vang và nước hoa. </s> | [
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<s> Chọn đáp án đúng với câu hỏi: He did not bother answering me, his eyes were almost closed, but the impression he gave was that he was concentrating intensely and quite _______ to what was happening around us.
A. wary
B. alert
C. observant
D. cautious Đáp án là: B. alert </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Số 34805 được đọc là:
A. Ba mươi tư nghìn tám trăm linh năm
B. Ba trăm bốn mươi tám nghìn không trăm linh năm
C. Ba mươi tư nghìn tám trăm năm mươi
D. Ba mươi tư nghìn không trăm tám lăm Đáp án là: A. Ba mươi tư nghìn tám trăm linh năm </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Lớp 5A có 40 học sinh. Số học sinh nữ chiếm 55% tổng số học sinh cả lớp, vậy số học sinh nữ của lớp đó là:
A. 18 học sinh
B. 20 học sinh
C. 22 học sinh
D. 24 học sinh Đáp án là: C. 22 học sinh </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Để tác dụng hết với 100 gam lipit có chỉ số axit bằng 7 phải dùng 17,92 gam KOH. Khối lượng muối thu được là:
A. 108,265 g
B. 170 g
C. 82,265 g
D. 107,57 g Đáp án là: A. 108,265 g </s> | [
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<s> Chọn đáp án đúng với câu hỏi: The owners of (A) modern manufacturing plants had workers (B) doing heavy and (C) repetitive tasks (D) replacing by robots.
A. modern manufacturing
B. doing
C. repetitive tasks
D. replacing Đáp án là: D. replacing </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Ở một loài thực vật xét 3 cặp gen nằm trên nhiễm sắc thể thường, mỗi gen quy định một tính trạng các alen trội là trội hoàn toàn. Cho các cây đều dị hợp tử về 3 cặp gen tự thụ phấn thu được đời con F 1 gồm 8 loại kiểu h... | [
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<s> Chọn đáp án đúng với câu hỏi: Vật sáng AB đặt vuông góc với trục chính của một thấu kính hội tụ có tiêu cự f = 12 c m. Để ảnh của vật có độ cao vằng vật thì phải đặt vật cách thấu kính 1 khoảng bằng:
A. 6cm
B. 12cm
C. 24cm
D. 48cm Đáp án là: C. 24cm </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Số liên kết π (pi) trong phân tử andehit axetic?
A. 1.
B. 2.
C. 3.
D. 4. Đáp án là: A. 1. </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: Cho hình phẳng (H) giới hạn bởi đồ thị các hàm số y=x^2 và y=√(x). Tính thể tích V của khối tròn xoay sinh ra khi cho hình phẳng (H) quanh quanh trục Ox.
A. V=(9π)/70
B. V=3/10
C. V=9/70
D. V=(3π)/10 Đáp án là: D. V=(3π)/10 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Ở người, bệnh mù màu do gen lặn nằm trên NST X tại vùng không tương đồng với NST Y gây ra. Giả sử trong một quần thể, người ta thống kê được số liệu như sau: 952 phụ nữ có kiểu gen XDXD, 355 phụ nữ có kiểu gen XDXd, 1 phụ nữ... | [
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438,
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140,
302,
2543,
207,
158,
29877,
207,
158,
30... | [
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1,
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1... |
<s> Chọn đáp án đúng với câu hỏi: Chọn phát biểu sai:
A. Phenol có tính axit nhưng yếu hơn axit cacbonic.
B. Phenol cho phản ứng cộng dễ dàng với brôm tạo kết tủa trắng 2,4,6-tribromphenol.
C.Do nhân bezen hút điện tử khiến –OH của phenol có tính axit.
D. Dung dịch phenol không l... | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Viết tập hợp \[M = \left\{ {x \in Z\left| { - 5 < x \le 3} \right.} \right\}\] dưới dạng liệt kê ta được
A. \[M = \left\{ { - 5; - 4; - 3; - 2; - 1;0;1;3} \right\}.\]
B. \[M = \left\{ { - 4; - 3; - 2; - 1;1;2;3} \right\}.\]
C. \[M = \left\{ { - 4; - 3; - 2; - 1;0;1;2;3} \right\}.\]
D. ... | [
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<s> Chọn đáp án đúng với câu hỏi: When his alarm went off, he shut it off and slept for_______15 minutes.
A. other
B. others
C. another
D. the others Đáp án là: C. another </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Nếu cả 4 hệ sinh thái dưới đây đều bị ô nhiễm thủy ngân với mức độ ngang nhau, con người ở hệ sinh thái nào trong 4 hệ sinh thái đó bị nhiễm độc nhiều nhất?
A. Tảo đơn bào → động vật phù du → cá → người.
B. Tảo đơn bào → cá ... | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Một ván trượt dài L = 4m, khối lượng phân bố đều theo chiều dài, đang chuy ể n động với vận tốc v 0 = 5m/s trên mặt b ă ng nằm ngang nhẵn ma sát không đáng k ể thì gặp một d ả i đường nhám có ma sát đủ lớn với hệ số ma sá... | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: It's time I ____ and raised a family.
A. carried on
B. grew up
C. settled down
D. worked out Đáp án là: C. settled down </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Công của lực là c ô ng cản trong t rườn g hợp sau
A. Công của lực kéo khi ta kéo vật trượt thẳng đ ề u trên mặt phẳng ngang
B. Công của trọng lực khi vật đang chuyển động ném ngang
C. Công của trọng lực khi vật đang trượt lên trên... | [
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<s> Chọn đáp án đúng với câu hỏi: Khi cho khí metan tác dụng với khí clo theo tỉ lệ 1: 1 về thể tích, sản phẩm phản ứng là
A. CCl 4
B. CHCl 3
C. CH 2 Cl 2
D. CH 3 Cl Đáp án là: D. CH 3 Cl </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Khi nói về sóng ánh sáng, phát biểu nào sau đây đúng?
A. Ánh sáng trắng không bị tán sắc khi đi qua lăng kính
B. Ánh sáng đơn sắc không bị tán sắc khi đi qua lăng kính
C. Tia X có tần số nhỏ hơn tần số của ánh sáng nhìn thấy
D. Tia tu... | [
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<s> Chọn đáp án đúng với câu hỏi: Trong một phép đo đạc, tính toán, các bạn An, Phong, Nam lần lượt có các sai số tuyệt đối sau: 0,005; 0,004; 0,003. Hỏi phép đo đạc, tính toán của bạn nào chính xác nhất?
A. An;
B. Phong;
C. Nam;
D. Ba bạn có chất lượng phép đo đạc, tính toán như nhau. Đáp án là: C. Nam; </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Việc nhiều nước công nhận và đặt quan hệ ngoại giao với Liên Xô chứng tỏ điều gì?
A. Liên Xô có tiềm lực rất lớn về mặt kinh tế và quốc phòng
B. Các nước bắt buộc phải thiết lập quan hệ ngoại giao với Liên Xô
C. Khẳng... | [
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<s> Chọn đáp án đúng với câu hỏi: Giải phương trinh (cosx(1−2sinx))/(2cos^2x−sinx−1)=√(3).
A. x=(π)/6+k2π,k∈Z.
B. x=(−π)/6+k2π,(−π)/2+k2π,k∈Z.
C. x=(−π)/6+k2π,k∈Z.
D. x=±(π)/6+k2π,k∈Z. Đáp án là: C. x=(−π)/6+k2π,k∈Z. </s> | [
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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,
4406,
30643,
29875,
1374,
30416,
30556,
865,
534,
262,
29882,
313,
... | [
1,
1,
1,
1,
1,
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1,
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1,
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1,
1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Choose the letter A, B, C or D the word that has different stress pattern from others.
A. agree
B. transmit
C. perhaps
D. carry Đáp án là: D. carry </s> | [
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1,
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1... |
<s> Chọn đáp án đúng với câu hỏi: Số đồng phân amin có công thức phân tử C 3 H 9 N là:
A. 5.
B. 3.
C. 2.
D. 4. Đáp án là: D. 4 </s> | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Trong các vi sinh vật “vi khuẩn lam, vi khuẩn lưu huỳnh màu tía, vi khuẩn lưu huỳnh màu lục, nấm, tảo lục đơn bào”, loài vi sinh vật có kiểu dinh dưỡng khác với các vi sinh vật còn lại là
A. Nấm
B. Tảo lục đơn bào
C. Vi khuẩn lam
D. Vi k... | [
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274,
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298,
228,
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29901,
1605,
549,
5777,
30103,
29883,
3516,
4457,
29882,
2947,
31214,
31500,... | [
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1,
1,
1,
1,
1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Một vật dao động điều hòa tắt dần. Cứ sau mỗi chu kì biên độ dao động giảm 2%. Hỏi sau mỗi chu kì cơ năng giảm bao nhiêu
A. 1,00%.
B. 3,96%.
C. 2,00%.
D. 4,00%. Đáp án là: B. 3,96%. </s> | [
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1,
1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Một sóng ngang hình sin truyền trên một sợi dây dài. Hình vẽ bên là hình dạng của một đoạn dây tại một thời điểm xác định. Trong quá trình lan truyền sóng, khoảng cách lớn nhất giữa hai phần tử M và N có giá trị gần nhất với g... | [
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865,
302,
8029,
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... | [
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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: Hỗn hợp X gồm chất Y (C 2 H 10 O 3 N 2 ) và chất Z (C 2 H 7 O 2 N). Cho 14,85 gam X phản ứng vừa đủ với dung dịch NaOH và đun nóng, thu được dung dịch M và 5,6 lít (đktc) hỗn hợp T gồm 2 khí (đều làm xanh quỳ tím tẩm nước cất). Cô cạn to... | [
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274,
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29901,
8335,
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1060,
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... | [
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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: Dung dịch nào sau đây có pH > 7?
A. HNO 3
B. KOH
C. CH 3 OH
D. KCl Đáp án là: B. KOH </s> | [
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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: Cho hình chóp S.ABCD có đáy ABCD là hình vuông và SA⊥(ABCD), gọi O là tâm hình vuông ABCD. Khẳng định nào sau đây sai?
A. (SAC)⊥(SBD)
B. Góc giữa hai mặt phẳng (SBC) và (ABCD) là góc ABS^
C. Góc giữa hai mặt phẳng (SBD) và (ABCD) là góc SOA^
D. Góc giữa hai mặt phẳng (SAD) và (ABCD) lá... | [
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1,
1,
1,
1,
1,
1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Cho a bất kỳ, chọn câu sai?
A. 2a - 5 < 2a + 1
B. 3a - 3 > 3a - 1
C. 4a < 4a + 1
D. 5a + 1 > 5a - 2 Đáp án là: B. 3a - 3 > 3a - 1 </s> | [
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1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Khi nói về ánh sáng, phát biểu nào sau đây sai?
A. Hiện tượng quang điện trong được ứng dụng trong quang điện trở và pin quang điện.
B. Trong chân không, phôtôn bay với tốc độ 3.108 m/s dọc theo tia sáng.
C. Tia laze có tính đơn sắc cao, t... | [
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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: Polime được điều chế bằng phản ứng trùng hợp là
A. nilon-6,6.
B. poli(etylen-terephtalat).
C. xenlulozo triaxetat.
D. polietilen. Đáp án là: D. polietilen </s> | [
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1,
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1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Hỗn hợp X gồm chất Y (C 2 H 8 O 4 N 2 ) và chất Z (C 4 H 8 N 2 O 3 ); trong đó Y là muối của axit đa chức, Z là đipeptit mạch hở. Cho 25,6 gam X tác dụng với dung dịch NaOH dư, đun nóng, thu được 0,2 mol khí. Mặt khác 25,6 gam X tác dụng với dung... | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Martin was behind all the brilliant marketing schemes – he is really the ______ of the company.
A. brains
B. head
C. heart
D. backbones Đáp án là: A. brains </s> | [
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9999,
292,
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785,
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1,
1,
1,
1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: _________ over long distances is a fact that everyone knows.
A. That electricity transmitting
B. That electricity can be transmitted
C. That electricity
D. That can be transmitted Đáp án là: B. That electricity can be transmitted </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Một cá thể ở một loài động vật có bộ nhiễm sắc thể 2n = 12. Khi quan sát quá trình giảm phân của 2000 tế bào sinh tinh, người ta thấy 20 tế bào có cặp nhiễm sắc thể số 1 không phân li trong giảm phân I, các sự kiện khác trong... | [
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<s> Chọn đáp án đúng với câu hỏi: John: “Are you sure that’s Ok?” - Linda: “_____________.”
A. Of course it is
B. No, I am not
C. I don’t think so
D. I haven’t thought about it Đáp án là: C. I don’t think so </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Sợi dây dài l = 90 cm có đầu A cố định, đầu B tự do. Khi tần số trên dây là f = 10 Hz thì trên dây có 8 nút sóng dừng. Nếu B cố định và tốc độ truyền sóng không đổi mà muốn có sóng dừng trên dây với 8 nút sóng thì phải thay đo... | [
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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. advice
B. crash
C. battery
D. damage Đáp án là: A. advice </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Hai nguồn kết hợp là hai nguồn sóng
A. cùng biên độ và độ lệch pha không đổi.
B. cùng biên độ và cùng pha.
C. cùng tần số và độ lệch pha không đổi.
D. cùng tần sổ và cùng biên độ. Đáp án là: D. cùng tần sổ và cùng biên độ </s... | [
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<s> Chọn đáp án đúng với câu hỏi: Thành tựu lớn nhất trong lĩnh vực quân sự cuối thế kỉ XVIII đầu thế kỉ XIX là gì?
A. Nhiều vũ khí mới được sản xuất: Đại bác, thủy lôi,...
B. Chế tạo được đại bác bắn nhanh và xa.
C. Chiến hạm chân vịt có trọng tải lớn.
D. K... | [
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<s> Chọn đáp án đúng với câu hỏi: Văn bản đề nghị phải viết theo một khuôn mẫu nhất định giống như các văn bản hành chính khác
A. Em muốn làm thẻ thư viện của nhà trường
B. Một khu phố xảy ra vụ trộm cắp tài sản công dân. Tổ trưởng khu phố đó trình bày sự v... | [
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<s> Chọn đáp án đúng với câu hỏi: Hãy cho biết lớp N có thể chứa tối đa bao nhiêu electron?
A. 2.
B. 8.
C. 18.
D. 32. Đáp án là: D. 32 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Trong không khí, trong số các thấu kính sau, thấu kính có thể hội tụ được chùm sáng tới song song là
A. thấu kính hai mặt lõm
B. thấu kính phẳng lõm
C. thấu kính mặt lồi có bán kính lớn hơn mặt lõm
D. thấu kính phẳng lồi Đáp á... | [
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<s> Chọn đáp án đúng với câu hỏi: Cho 18,72 gam hỗn hợp rắn X gồm Fe, Fe 3 O 4 và Fe(NO 3 ) 2 vào dung dịch chứa 0,75 mol HCl và 0,06 mol HNO 3, khuấy đều cho các phản ứng xảy ra hoàn toàn, thu được dung dịch Y (không chứa ion NH 4 + ) và 0,08 mol hỗn hợp khí Z gồm NO và N 2 O. ... | [
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<s> Chọn đáp án đúng với câu hỏi: Cho 7,4 gam metyl axetat vào 200 ml dung dịch NaOH 1M đun nóng. Sau phản ứng ứng hoàn toàn, cô cạn dung dịch thu được m gam chất rắn khan. Giá trị của m là:
A. 15,4
B. 10,8
C. 12,2
D. 8,2 Đáp án là: C. 12,2 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Để may nơ buộc tóc, cô thợ vải cắt 1 đoạn dây 1 m thành 5 đoạn bằng nhau. Hỏi mỗi đoạn dài bao nhiêu xăng – ti – mét?
A. 15 cm
B. 20 cm
C. 25 cm
D. 30 cm Đáp án là: B. 20 cm </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Đồng ghép là trường hợp:
A. Lấy mô từ chỗ này cấy vào chỗ khác trên cùng một cơ thể.
B. Ghép mô từ loài này sang loài khác.
C. Ghép mô từ người này sang người khác không cùng huyết thống.
D. Lấy tế bào từ anh/chị/em song s... | [
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1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Sự phát sinh đột biến gen phụ thuộc vào
A. Cường độ, liều lượng, loại tác nhân gây đột biến và cấu trúc của gen.
B. Mối quan hệ giữa kiểu gen, môi trường và kiểu hình.
C. Sức đề kháng của từng cơ thể.
D. Điều kiện sống ... | [
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<s> Chọn đáp án đúng với câu hỏi: Cho hình chóp S.ABCD có đáy ABCD là hình vuông cạnh a, mặt bên SAD là tam giác đều và nằm trong mặt phẳng vuông góc với đáy (ABCD). Gọi M, N, P lần lượt là trung điểm SB, BC, CD. Thể tích của CMNP theo a bằng
A. (a^3√(3))/16.
B. (a^3√(3))/32.
C. (a^3√(3))/96.
D. (a^3√(3))/48. Đáp án là... | [
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1,
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1... |
<s> Chọn đáp án đúng với câu hỏi: Tảo có vai trò gì đối với đời sống con người và các sinh vật khác?
A. Cung cấp nguồn nguyên liệu trong công nghiệp sản xuất giấy, hồ dán, thuốc nhuộm... ngoài ra còn được sử dụng làm phân bón, làm thuốc
B. Cung cấp nguồn thứ... | [
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<s> Chọn đáp án đúng với câu hỏi: Invitations were sent out as soon as the date of the conference was chosen.
A. Before sending out invitations, the date of the conference was chosen.
B. Choose the date of the conference before sending out invitations.
C. Hardly had the date of the conference been chosen when invitatio... | [
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<s> Chọn đáp án đúng với câu hỏi: Hiđrocacbon X không làm mất màu dung dịch brom ở nhiệt độ thường. X là chất nào sau đây?
A. benzen
B. etilen
C. propen
D. stiren. Đáp án là: A. benzen </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Viết x^2 – 4y^2 dưới dạng tích, ta được
A. x + 2y(x – 2y);
B. (x – 4y)(x – 4y);
C. (x + 2y)(x – 2y);
D. (x + 4y)(x + 4y). Đáp án là: C. (x + 2y)(x – 2y); </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Trong các đề bài sau, đề nào là đề nghị luận về một tư tưởng đạo lí?
A. Suy nghĩ về tấm gương của một học sinh nghèo vượt khó.
B. Suy nghĩ của em về những con người không chịu thua số phận.
C. Suy nghĩ của em về câu ca dao Nhie... | [
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<s> Chọn đáp án đúng với câu hỏi: Một nguồn điện được mắc với một biến trở. Khi điện trở của biến trở là 2 Ω thì hiệu điện thế giữa hai cực của nguồn là 4 V còn khi điện trở của biến trở là 3 Ω thì hiệu điện thế giữa hai cực của nguồn là 4,5V. Tính ... | [
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<s> Chọn đáp án đúng với câu hỏi: Phát biểu đúng là:
A. Hóa học hữu cơ là ngành học chuyên nghiên cứu về các hợp chất của cacbon.
B. Hóa học hữu cơ là ngành học chuyên nghiên cứu về các hợp chất hữu cơ.
C. Hidrocacbon là hợp chất mà trong phân tử có đủ các nguy... | [
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<s> Chọn đáp án đúng với câu hỏi: Cho 3y^2 – 3y(y – 2) = 36. Giá trị của y là:
A. 5
B. 6
C. 7
D. 8 Đáp án là: B. 6 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Tháng 4 năm 1931, Đảng ta được Quốc tế Cộng sản công nhận là
A. một bộ phận độc lập trực thuộc Quốc tế Cộng sản.
B. một Đảng trong sạch vững mạnh.
C. một Đảng đủ khả năng lãnh đạo cách mạng.
D. một bộ phận của Quốc tế Co... | [
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<s> Chọn đáp án đúng với câu hỏi: Trong mặt phẳng tọa độ Oxy, cho đường thẳng d có phương trình 5x -3y + 15 = 0. Tìm ảnh d' của d qua phép quay Q(O 90°) với O là gốc tọa độ.?
A. 5x - 3y + 6 = 0
B. 3x + 5y + 15 = 0
C. 5x + y - 7 =0
D. -3x + 5y + 7 = 0 Đáp án là: B. 3x + 5y + 15 = 0 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: They_____ any junk mail since they_____ house.
A. hadn't received / moved
B. don't receive / had moved
C. didn't receive / have moved
D. haven't received/moved Đáp án là: D. haven't received/moved </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Sự tập hợp của nhiều điểm công nghiệp, khu công nghiệp, trung tâm công nghiệp có mối liên hệ về sản xuất và có những nét tương đồng trong quá trình hình thành công nghiệp là đặc điểm của
A. Điểm công nghiệp.
B. Khu công nghiẹ... | [
1,
1,
29871,
678,
30975,
29876,
29871,
30128,
29976,
29886,
29871,
1715,
29871,
30128,
30030,
865,
325,
31280,
29875,
274,
30057,
29884,
298,
228,
190,
146,
29875,
29901,
2166,
207,
158,
31214,
11062,
31214,
31500,
29886,
5089,
207,
158,
... | [
1,
1,
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1,
1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Các nông sản chính của các đồng bằng Hoa Trung, Hoa Nam?
A. Lúa gạo, ngô.
B. Chè, bông.
C. Chè, lúa mì.
D. Bông, lợn. Đáp án là: B. Chè, bông. </s> | [
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3... | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Tom________watch TV than go to the party with his friend.
A. would like
B. isn’t allowed
C. isn’t permitted
D. would rather Đáp án là: D. would rather </s> | [
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411,
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5121... | [
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1,
1,
1,
1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Các chất: saccarozơ, glucozơ, triolein, glixerol được kí hiệu ngẫu nhiên là X, Y, Z, T. Ở điều kiện thường, X và Y ở thể rắn, Z và T ở thể lỏng. Một số kết quả thí nghiệm được ghi ở bảng sau. Thuốc thử Mẫu thử Hiện tượng... | [
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1,
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21... | [
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1,
1,
1,
1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Những người đau dạ dày trong dạ dày thường có pH < 2 (mức pH bình thường từ 2 – 3). Để chữa đau dạ dày, người ta thường uông gì trước khi ăn?
A. Nước
B. Nước đường
C. Nước mắm
D. Dung dịch NaHCO 3 Đáp án là: D. Dung dịch NaHCO 3 </... | [
1,
1,
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678,
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405,
6905,
207,
158,
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302,
2543,
207,
158,
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207,
... | [
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: Từ năm 1466, hệ thống tổ chức quân đội Đại Việt được cải tổ trên quy mô lớn. Cả nước được chia thành
A. 4 khu vực quân sự (Tứ phủ quân).
B. 5 khu vực quân sự (Ngũ phủ quân).
C. 6 khu vực quân sự (Lục phủ quân).
D. 7 khu vực ... | [
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<s> Chọn đáp án đúng với câu hỏi: The last time I was in Italy, I was on a business trip - I can't say I saw many of the famous tourist (265) _____ on that occasion
A. views
B. visit
C. scenes
D. sights Đáp án là: D. sights </s> | [
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450,
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297,
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306,
471,
373,
263,
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1,
1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Qua sự miêu tả của nhà văn, giữa tên cai lệ và người nhà lí trưởng có điểm gì giống nhau nhất về mặt nhân cách?
A. Cùng bất nhân, tàn ác
B. Cùng là nông dân
C.Cùng làm tay sai
D. Cùng ghét vợ chồng nhà chị Dậu Đáp án là: A. Cùng... | [
1,
1,
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678,
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207,
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: Cho khối chóp S.ABCD, trong đó ABCD là hình thang có các cạnh đáy AB, CD sao cho CD=4.AB, một mặt phẳng qua CD cắt SA, SB lần lượt tại các điểm M, N. Đặt (SM)/(SA)=x,0<x<1. Tìm x sao cho thiết diện MNCD chia khối chóp đã cho thành hai phần có thể tích bằng nhau.
A. x=(−3+√(13))/2.
B. x... | [
1,
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1,
1,
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1,
1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Chọn đáp án đúngGiử sử hình lập phương có cạnh là a thì công thức tính diện tích toàn phần của hình lập phương là:
A. Stp = (a x a) : 6
B. Stp = a x 6
C. Stp = (a + a) x 6
D. Stp = (a x a) x 6 Đáp án là: D. Stp = (a x a) x 6 </s> | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: It is essential to provide high school students with adequate career orientation, so they can make more informative decisions about their future major.
A. essential
B. orientation,
C. informative
D. major. Đáp án là: C. informative </s> | [
1,
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739,
338,
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411,
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1,
1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Có bao nhiêu phát biểu dưới đây là không đúng khi nói về giao phối ngẫu nhiên? (1) Giao phối ngẫu nhiên không làm biến đổi thành phần kiểu gen và tần số tương đối các alen trong quần thể. (2) Giao phối ngẫu nhiên tạo ra các biế... | [
1,
1,
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678,
30975,
29876,
29871,
30128,
29976,
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1,
1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Anne couldn’t find a taxi so I offered _______ her to the station.\
A. drive
B. to drive
C. driving
D. driven Đáp án là: B. to drive </s> | [
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1,
1,
1,
1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Trong cấu tạo của tế bào thực vật, bào quan nào thường có kích thước rất lớn, nằm ở trung tâm tế bào và đóng vai trò quan trọng trong việc duy trì áp suất thẩm thấu?
A. Nhân
B. Không bào
C. Ti thể
D. Lục lạp Đáp án là: B. Không bà... | [
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1,
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2723,
207,... | [
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1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Giá trị của biểu thức 69 218 – 26 736 : 3 là
A. 61 316
B. 61 216
C. 60 306
D. 60 206 Đáp án là: C. 60 306 </s> | [
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29901,
4406,
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534,
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266,
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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: Viết tích \[{a^4}.{a^6}\] dưới dạng một lũy thừa ta được
A. \[{a^8}\]
B. \[{a^9}\]
C. \[{a^{10}}\]
D. \[{a^2}\] Đáp án là: C. \[{a^{10}}\] </s> | [
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18... | [
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1,
1,
1,
1,
1,
1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Số đối của 8 là:
A. – 8
B. 0
C. 8
D. 16 Đáp án là: A. – 8 </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: Một vật chuyển động thẳng không đổi chiều. Trên quãng đường AB, vật đi nửa quãng đường đầu với vận tốc v 1 = 16 m / s, nửa quãng đường sau vật đi với vận tốc v 2 = 4 m / s. Vận tốc trung bình trên cả quãng đường là
A. 10 m/s... | [
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521,
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409... | [
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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: Mark the letter A, B, C or D on your answer sheet to indicate the sentence that best completes each of the following exchanges. Student A: You don’t have to bring any skiing equipment. It can be rented at the front desk. Student B: ______________
A. OK, thanks for letting me know.
B. I... | [
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4485,
278,
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319,
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350,
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315,
470,
360,
373,
596,
... | [
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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: Có bao nhiêu số tự nhiên có 6 chữ số mà các chữ số của nó đều thuộc E =(0; 1; 2).
A. 216 số.
B. 180 số.
C. 486 số.
D. 729 số. Đáp án là: C. 486 số. </s> | [
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31... | [
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1,
1,
1,
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1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Nếu a chia hết cho 3 và b chia hết cho 3 thì tổng a + b:
A. chia hết cho 3
B. không chia hết cho 3
C. có tận cùng là 3
D. có tận cùng là 0 hoặc 5 Đáp án là: A. chia hết cho 3 </s> | [
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2... | [
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1,
1,
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1... |
<s> Chọn đáp án đúng với câu hỏi: Tiến hành các thí nghiệm với các dung dịch X, Y, Z, T thu được kết quả sau: Bảng dưới đây ghi lại hiện tượng khi làm thí nghiệm với các chất X, Y, Z, T ở dạng dung dịch: Các chất X, Y, Z, T lần lượt là:
A. glixerol, glucozơ, etanal, sa... | [
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865,
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31280,
29875,
274,
30057,
29884,
298,
228,
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29875,
29901,
323,
347,
31500,
30103,
29876,
447,
30712,
29876,
29882,
5777,
30103,... | [
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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 các phát biểu sau: 1. Cu OH 2 tan được trong dung dịch NH 3.2. Kim loại Cu phản ứng được với dung dịch HCl 3. Cr OH 3 là hiđroxit lưỡng tính 4. Khí NH 3 khử được CuO nung nóng. Số phát biểu đúng là?
A. 1
B. 2
C. 3
D. 4 Đáp án là: C. 3 </s> | [
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1,
1,
1,
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1... |
<s> Chọn đáp án đúng với câu hỏi: Mark the letter A, B, C, or D to indicate the word whose underlined part differs from the other three.
A. grea s e
B. s ympathy
C. hor s e
D. ro s e Đáp án là: D. ro s e </s> | [
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1,
1,
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1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Cho f(x)=ax^2+bx+c (a≠0) có Δ=b^2−4ac<0. Khi đó mệnh đề nào đúng?
A. f(x)>0, ∀x∈R;
B. f(x)<0, ∀x∈R;
C. f(x) không đổi dấu;
D. Tồn tại x để f(x)=0. Đáp án là: C. f(x) không đổi dấu; </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: Đoạn mạch xoay chiều gồm R, L, C mắc nối tiếp, cuộn dây thuần cảm. Đặt vào hai đầu đoạn mạch hiệu điện thế xoay chiều u = 220 2 cos ω t V với ω có thể thay đổi được. Khi ω = ω 1 = 100 π rad/s thì cường độ dòng điện trong mạch sớm p... | [
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30250,
19807,
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611,
31214,
305,
921,
29877,
388,
... | [
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1,
1,
1,
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1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Tổ hợp ADN của thể truyền và gen cần chuyển được gọi là:
A. Protein
B. Plasmid
C. ADN vòng
D. ADN tái tổ hợp Đáp án là: D. ADN tái tổ hợp </s> | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Tập tính nào sau đây không phản ánh mối quan hệ cùng loài
A. Tập tính sinh sản
B. Tập tính bảo vệ lãnh thổ
C. Tập tính kiếm ăn
D. Tập tính di cư Đáp án là: C. Tập tính kiếm ăn </s> | [
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1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Tại sao Pháp chọn Việt Nam trong chính sách xâm lược của mình?
A. Việt nam có vị trí địa ý thuận lợi.
B. Việt Nam có vị trí quan trộng, giàu tài nguyên, thị trường béo bở.
C. Việt Nam là một thị trường rộng lớn.
D. Chế độ phong ... | [
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29875,
29901,
10523,
31214,
29875,
872,
29877,
1963,
29874,
30103,
29886,
3060,
312... | [
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1,
1,
1,
1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Khi nói về điểm khác nhau cơ bản giữa hệ sinh thái nhân tạo và hệ sinh thái tự nhiên, phát biểu nào sau đây đúng?
A. Hệ sinh thái nhân tạo thường kém ổn định hơn hệ sinh thái tự nhiên.
B. Hệ sinh thái nhân tạo thường có lưới th... | [
1,
1,
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678,
30975,
29876,
29871,
30128,
29976,
29886,
29871,
1715,
29871,
30128,
30030,
865,
325,
31280,
29875,
274,
30057,
29884,
298,
228,
190,
146,
29875,
29901,
476,
2918,
694,
30103,
29875,
2453,
31500,
30712,
29871,
30128,
347,
... | [
1,
1,
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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: Để phân biệt 2 dung dịch: Na 2 SO 4 và Na 2 SO 3 người ta dùng dung dịch thuốc thử nào sau đây:
A. BaCl 2
B. HCl
C. Pb(NO 3 ) 2
D. AgNO 3 Đáp án là: B. HCl </s> | [
1,
1,
29871,
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29976,
29886,
29871,
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31500,
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140,
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31500,
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289,... | [
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1,
1,
1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Xenlulozơ trinitrat được điều chế từ xenlulozơ và axit nitric đặc có xúc tác axit sunfuric đặc, nóng. Để có 29,7 kg xenlulozơ trinitrat, cần dùng dung dịch chứa m kg axit nitric (hiệu suất phản ứng tính theo axit là 90%). Giá trị của m là
A. 3... | [
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29976,
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158,
534,
2344,
3605,
2987... | [
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1,
1,
1,
1,
1,
1,
1... |
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