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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 questions.
A. interview
B. relevant
C. graduate
D. employee Đáp án là: D. employee </s> | [
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<s> Chọn đáp án đúng với câu hỏi: He only had time to ______ into the report. He couldn’t read it thoroughly.
A. read
B. see
C. dip
D. break Đáp án là: C. dip </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Choose the word which has the different stress: academic, geological, secondary, undergraduate.
A. academic
B. geological
C. secondary
D. undergraduate Đáp án là: C. secondary </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Một khung dây dẫn hình tròn, bán kính R đặt trong chân không. Dòng điện chạy trong khung có cường độ I A. Cảm ứng từ tại tâm O của khung dây được tính theo công thức nào dưới đây?
A. B = 2 π. 10 - 7. R I
B. B = 2.10 - 7. I R
C. B = 2 π. 10 - 7. I R
D. B = 2 π. 10 - 7. I R Đáp án là: C. B = 2 π. 10 - 7. I R </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Hỗn hợp M gồm ancol no, đơn chức X và axit cacboxylic đơn chức Y, đều mạch hở và có cùng số nguyên tử C, tổng số mol của hai chất là 0,5 mol (số mol của Y lớn hơn số mol của X). Nếu đốt cháy hoàn toàn M thì thu được 33,6 lít CO 2 (đktc) và 25,2 gam H 2 O. Mặt khác nếu đun nóng M với H 2 SO 4 đặc để thực hiện phản ứng este hóa (H = 80%) thì số gam este thu được là
A. 22,80.
B. 34,20.
C. 27,36.
D. 18,24 Đáp án là: D. 18,24 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Bậc của đơn thức -2x^3y^5 là:
A. -2.
B. 3.
C. 8.
D. x^3y^5. Đáp án là: A. -2. </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Phát biểu nào sau đây là đúng?
A. Đa số các loài thuộc bộ Lưỡng cư có đuôi hoạt động về ban đêm.
B. Đa số các loài thuộc bộ Lưỡng cư không chân hoạt động về ban đêm.
C. Đa số các loài thuộc bộ Lưỡng cư không đuôi hoạt động về ban ngày.
D. Đa số các loài thuộc bộ Lưỡng cư không đuôi hoạt động về ban đêm. Đáp án là: D. Đa số các loài thuộc bộ Lưỡng cư không đuôi hoạt động về ban đêm </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Cho một luồng khí CO đi qua ống sứ đựng m gam Fe 2 O 3 nung nóng. Sau một tời gian thu được 10,44 gam chất rắn X gồm Fe, FeO, Fe 2 O 3 và Fe 3 O 4. Hoà tan hết X trong dung dịch HNO 3 đặc, nóng thu được 4,368 lít NO 2 (sản phẩm khử duy nhất, ở đktc). Giá trị của m là:
A. 12
B. 24
C. 10,8
D. 16 Đáp án là: A. 12 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: For example, athletes and dancers can practise it to (7)______ their energy and to improve stamina
A. receive
B. return
C. realize
D. restore Đáp án là: D. restore </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Nhân vật lịch sử nào được đề cập đến trong câu đố dân gian dưới đây? “Vua nào thuở bé chăn trâu Trường Yên một ngọn cờ lau tập tành Sứ quân dẹp loạn phân tranh Dựng nền thống nhất sử xanh còn truyền?”
A. Ngô Quyền.
B. Lý Công Uẩn.
C. Đinh Bộ Lĩnh.
D. Phùng Hưng. Đáp án là: C. Đinh Bộ Lĩnh. </s> | [
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<s> Chọn đáp án đúng với câu hỏi: There's...................sharp in my shoe and I feel hurt.
A. anything
B. everything
C. something
D. nothing Đáp án là: C. something </s> | [
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<s> Chọn đáp án đúng với câu hỏi: lim ((π)/4)^n bằng
A. 0
B. 2
C. -∞
D. 1/3 Đáp án là: A. 0 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Ngành được coi là thước đo trình độ phát triển kinh tế - kĩ thuật của mọi quốc gia trên thế giới là công nghiệp
A. khai thác dầu khí.
B. khai thác than.
C. sản xuất hàng tiêu dùng.
D. điện tử - tin học. Đáp án là: D. điện tử - tin học </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Cho các nhận định sau: 1. Thời cổ đại Tây Nam Á có nhiều quốc gia có nền văn minh rực rỡ. 2. Tây Nam Á là nơi ra đời của nhiều tôn giáo. 3. Số ít dân cư Tây Nam Á theo đạo hồi. 4. Những phần tử cực đoan của các tôn giáo góp phần bảo vệ hòa bình. Trong các nhận định trên, có bao nhiêu nhận định đúng?
A. 1.
B. 2.
C. 3.
D. 4. Đáp án là: B. 2. </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Phát biểu nào sau đây sai?
A. Dòng điện có cường độ biến thiên điều hòa theo thời gian gọi là dòng điện xoay chiều.
B. Điện áp biến thiên điều hòa theo thời gian gọi là điện áp xoay chiều.
C. Dòng điện và điện áp xoay chiều luôn biến thiên điều hòa cùng pha với nhau.
D. Suất điện động biến thiên điều hòa theo thời gian gọi là suất điện động xoay chiều. Đáp án là: C. Dòng điện và điện áp xoay chiều luôn biến thiên điều hòa cùng pha với nhau. </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Khoảng cách từ quang tâm thấu kính mắt đến màng lưới của một mắt bình thường là 1,5cm. Khả năng điều tiết của mắt giảm theo độ tuổi. So với lúc mắt không điều tiết thì khi mắt điều tiết tối đa, độ tụ mắt tăng thêm một lượng ∆ D = ( 16 - 0, 3 n ) d p với n là số tuổi tính theo đơn vị năm. Tính độ tụ tối đa của mắt bình thường ở tuổi 17 và khoảng cực cận của mắt ở độ tuổi đó.
A. D max = 77,57dp ; OC c = 9,17cm
B. D max = 87,57dp ; OC c = 9,17cm
C. D max = 77,57dp ; OC c = 10,17cm
D. D max = 87,57dp ; OC c = 10,17cm Đáp án là: A. D max = 77,57dp ; OC c = 9,17cm </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Choose A, B, C or D to indicate the word that differs from the other three in the position of primary stress in each of the following questions.
A. scared
B. secret
C. psychology
D. family Đáp án là: C. psychology </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Trong sóng cơ học, sóng dọc
A. truyền được trong chất rắn, chất lỏng, chất khí và chân không
B. truyền được trong chất rắn, chất lỏng và chất khí
C. không truyền được trong chất rắn
D. chỉ truyền được trong chất rắn Đáp án là: B. truyền được trong chất rắn, chất lỏng và chất khí </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Tác giả bài thơ là người như thế nào?
A. Một vị vua anh minh, sáng suốt
B. Một vị vua biết chăm lo đến đời sống của tướng sĩ
C. Một vị vua nhân từ, yêu thương muôn dân
D. Một vị vua gắn bó máu thịt với quê hương thôn dã Đáp án là: C. Một vị vua nhân từ, yêu thương muôn dân </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Đun nóng chất H 2 N - CH 2 - CONH - CH CH 3 - CONH - CH 2 - COOH trong dung dịch HCl (dư), sau khi các phản ứng kết thúc thu được sản phẩm là
A. H 2 N - CH 2 - COOH, H 2 N - CH 2 - CH 2 - COOH
B. Cl - H 3 N + − CH 2 − COOH, Cl - H 3 N + − CH 2 − CH 2 − COOH
C. C l - H 3 N + − C H 2 − C O O H, C l - H 3 N + − C H ( C H 3 ) − C O O H
D. H 2 N - CH 2 - COOH, H 2 N - CH CH 3 - COOH Đáp án là: C. C l - H 3 N + − C H 2 − C O O H, C l - H 3 N + − C H ( C H 3 ) − C O O H </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Số lớn nhất có 4 chữ số khác nhau đọc là:
A. Chín nghìn tám trăm bảy mươi sáu
B. Chín nghìn tám trăm bảy mươi tám
C. Chín nghìn chín trăm chín mươi chín
D. Chín nghìn tám trăm bảy sáu Đáp án là: A. Chín nghìn tám trăm bảy mươi sáu </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Trong tự nhiên, tiêu chuẩn quan trọng nhất để phân biệt các loài sinh sản hữu tính là
A. Sinh lí – hóa sinh.
B. Địa lí – sinh thái.
C. Hình thái.
D. Cách li sinh sản. Đáp án là: D. Cách li sinh sản </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Thuận lợi để phát triển cây công nghiệp lâu năm ở nước ta không phải là
A. đất phù sa có diện tích rộng.
B. khí hậu nhiệt đới nóng ẩm.
C. nguồn lao động dồi dào.
D. cơ sở chế biến phát triển. Đáp án là: A. đất phù sa có diện tích rộng. </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Số bé nhất trong các số 12, 45 87, 52, 97 là:
A. 12
B. 52
C. 11
D. 97 Đáp án là: A. 12 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Việc tác giả tưởng tượng ra một chuyến “du hành” vượt thời gian có ý nghĩa gì?
A. So sánh về sự đa dạng về các loài sinh vật từ xưa với ngày nay.
B. Giúp người đọc hiểu rõ hơn về lịch sử hình thành sự sống, sự đa dạng của các loài sinh vật trên Trái Đất của hàng trăm triệu năm về trước.
C. Giúp người đọc vận dụng trí tưởng tượng một cách tốt hơn.
D. A và B đúng. Đáp án là: B. Giúp người đọc hiểu rõ hơn về lịch sử hình thành sự sống, sự đa dạng của các loài sinh vật trên Trái Đất của hàng trăm triệu năm về trước. </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Choose the letter A, B, C or D the word that has different stress pattern from others.
A. canal
B. centre
C. better
D. suburb Đáp án là: A. canal </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,
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: Bán kính của hình tròn gấp lên 2 lần thì diện tích của hình tròn gấp lên mấy lần?
A. 2 lần
B. 4 lần
C. 6 lần
D. 8 lần Đáp án là: B. 4 lần </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Cho 7,68 gam Cu và 200 ml dung dịch gồm HNO 3 0,6M và H 2 SO 4 0,5M. Sau khi các phản ứng xảy ra hoàn toàn (sản phẩm khử duy nhất là NO), cô cạn cẩn thận toàn bộ dung dịch sau phản ứng thì khối lượng muối khan thu được là
A. 20,16 gam
B. 19,20 gam
C. 19,76 gam
D. 22,56 gam Đáp án là: C. 19,76 gam </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Cho các sơ đồ phản ứng sau: (1) 6X → Y (2) X + O 2 → Z (3) E + H 2 O → G (4) E + Z → F (5) F + H 2 O → Z + G. Điều khẳng định nào sau đây đúng?
A. Các chất X, Y, Z, E, F, G đều có nhóm chức –CHO trong phân tử
B. Chỉ có X và E là hiđrocacbon
C. Các chất X, Y, Z, E, F, G đều phản ứng được với dung dịch AgNO 3 trong NH 3.
D. Các chất X, Y, Z, E, F, G đều có cùng số C trong phân tử. Đáp án là: C. Các chất X, Y, Z, E, F, G đều phản ứng được với dung dịch AgNO 3 trong NH 3. </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Các ankan không tan trong dung môi nào dưới đây?
A. nước
B. tetraclometan (CCl 4 )
C. n -hexan
D. đietyl ete (C 2 H 5 -O-C 2 H 5 ) Đáp án là: A. nước </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Loại muối khoáng nào dưới đây có vai trò quan trọng trong việc hàn gắn vết thương
A. Iốt
B. Canxi
C. Kẽm
D. Sắt Đáp án là: C. Kẽm </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Biết khi hai kim đồng hồ chỉ vào hai số liên tiếp nhau thì góc giữa hai kim đồng hồ là 30°. Góc tạo bởi kim phút và kim giờ tại thời điểm 7 giờ là:
A. 30°;
B. 70°;
C. 150°;
D. 180°. Đáp án là: C. 150°; </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Internet of Things is considered as a billion-dollar __________.
A. work
B. hometown
C. birthplace
D. industry Đáp án là: D. industry </s> | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Số cặp electron góp chung và số cặp electron chưa liên kết của nguyên tử trung tâm trong các phân tử: CH 4, CO 2, NH 3, P 2 H 4, PCl 5, H 2 S lần lượt là
A. 4 và 0; 4 và 0; 3 và 1; 4 và 2; 5 và 0; 2 và 1.
B. 4 và 0; 4 và 0; 3 và 1; 5 và 2; 5 và 0; 2 và 2.
C. 4 và 1; 4 và 2; 3 và 1; 5 và 2; 5 và 0; 2 và 0.
D. 4 và 1; 4 và 2; 3 và 2; 5 và 2; 5 và 1; 2 và 2. Đáp án là: C. 4 và 1; 4 và 2; 3 và 1; 5 và 2; 5 và 0; 2 và 0. </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Điền số thích hợp vào ô trống:Phần nguyên của số thập phân 14, 58 là □
A. 14
B. 58
C. 45
D. 18 Đáp án là: A. 14 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Cho 48,24 gam hỗn hợp Cu, Fe 3 O 4 vào bình X đựng dung dịch H 2 SO 4 loãng dư, sau phản ứng còn lại 3,84 gam kim loại Y không tan. Tiếp theo, cho dung dịch NaNO 3 tới dư vào bình X, sau khí các phản ứng xảy ra hoàn toàn, kim loại Y đã tan hết, trong bình X thu được dung dịch Z (chứa axit H 2 SO 4 ) và có V lít khí NO (ở đktc là sản phẩm khử duy nhất của N + 5 ) Giá trị của V là
A. 0,986
B. 4,448
C. 4,256
D. 3,360 Đáp án là: C. 4,256 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Từ nào có thể thay thế từ “vui lòng” trong câu “Dẫu cho trăm thân này phơi ngoài nội cỏ, nghìn xác này gói trong da ngựa, ta cũng vui lòng”?
A. Cam chịu
B. Bình thường
C. Cam lòng
D. Mặc kệ Đáp án là: C. Cam lòng </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Khi nói năng suất tỏa nhiệt của than đá là 27.10 6 J/kg, điều đó có nghĩa là:
A. Khi đốt cháy 1 kg than đá tỏa ra nhiệt lượng là 27.10 6 J
B. Khi đốt cháy 1 g than đá tỏa ra nhiệt lượng là 27.10 6 J.
C. Khi đốt cháy hoàn toàn 1 kg than đá tỏa ra nhiệt lượng là 27.10 6 J.
D. Khi đốt cháy hoàn toàn 1 g than đá tỏa ra nhiệt lượng là 27.10 6 J. Đáp án là: C. Khi đốt cháy hoàn toàn 1 kg than đá tỏa ra nhiệt lượng là 27.10 6 J. </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Choose the letter A, B, C or D to answer these following questions His name is Phong. He’s twenty four years old and he’s a teacher at Nguyen Du School. This is his student. Her name is Nga. She is fourteen years old. This is his living room. In his living room, there is a table, a chair, a television and two couches. How many chairs are there in the living room?
A. one chair
B. two chairs
C. three chairs
D. no chair Đáp án là: A. one chair </s> | [
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278,
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<s> Chọn đáp án đúng với câu hỏi: Vai trò của cônxixin trong đột biến nhân tạo tạo giống mới là:
A. gây đột biến gen.
B. gây đột biến dị bội.
C. gây thường biến.
D. gây đột biến đa bội. Đáp án là: D. gây đột biến đa bội </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Một mạch dao động điện từ LC lý tưởng. Biết điện dung của tụ điện C = 5 μ F, hiệu điện thế cực đại hai đầu tụ điện là U 0 = 12 V. Tại thời điểm mà hiệu điện thế hai đầu cuộn dây 8 V, thì năng lượng điện trường và năng lượng từ trường trong mạch có giá trị tương ứng là
A. 1,6.10 − 4 J va 2,0.10 − 4 J
B. 2,0.10 − 4 J va 1,6.10 − 4 J
C. 2,5.10 − 4 J va 1,1.10 − 4 J
D. 1,6.10 − 4 J vaø 3,0.10 − 4 J Đáp án là: A. 1,6.10 − 4 J va 2,0.10 − 4 J </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Choose the best answer to complete the sentence. (Em hãy chọn câu trả lời đúng) My mother’s cooking is _______ your mother’s cooking.
A.bad than
B.worse than
C.bad
D.worse Đáp án là: B.worse than </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Hệ hai thấu kính L 1 và L 2 đặt đồng trục cách nhau một khoảng là a. Vật sáng AB đặt vuông góc với trục chính của thấu kính và trước L 1 cách thấu kính một khoảng d 1. d 1 ’ là khoảng cách từ ảnh tạo thành đến thấu kính thứ nhất, khi đó ảnh này cách thấu kính thứ hai một khoảng d 2 và d 2 ’ là khoảng cách từ ảnh tạo thành khi qua thấu kính thứ hai đến thấu kính thứ hai. Độ phóng đại củả ảnh qua hệ tính theo công thức nào dưới đây?
A. k = d 1 ' d 1. d 2 ' d 2
B. k = d 1 ' d 1. d 2 d 2 '
C. k = − d 1 ' d 1. d 2 ' d 2
D. k = d 1 ' d 1. d 2 ' d 2 Đáp án là: A. k = d 1 ' d 1. d 2 ' d 2 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Dàn ý của bài trình bày ý kiến về một vấn đề bao gồm mấy phần?
A. Một phần
B. Hai phần
C. Ba phần
D. Bốn phần Đáp án là: C. Ba phần </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Giá trị của biểu thức B = 8912 + x biết x = −6732 là
A. Số nguyên dương nhỏ hơn 2000.
B. Số nguyên dương lớn hơn 2000.
C. Số 0
D. Số nguyên âm nhỏ hơn −100 Đáp án là: B. Số nguyên dương lớn hơn 2000. </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Cho 10,2 gam một este đơn chức X tác dụng vừa đủ với 40 gam dung dịch NaOH 15%. Số đồng phân cấu tạo thỏa mãn điều kiện trên của X là
A. 3.
B. 4.
C. 5.
D. 6. Đáp án là: B. 4. </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Cho hàm số\(f(x)\) liên tục trên đoạn \(\left[ { - 1\,;5} \right]\)và có đồ thị trên đoạn \(\left[ { - 1\,;5} \right]\)như hình vẽ bên. Tổng giá trị lớn nhất và giá trị nhỏ nhất của hàm số\(f(x)\) trên đoạn \(\left[ { - 1\,;5} \right]\)bằng
A. \[ - 1\].
B. \[4\].
C. \(1\).
D. \(2\). Đáp án là: C. \(1\). </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Nam châm và nam châm điện có tính chất từ vì có khả năng:
A. Hút các vật bằng sắt hoặc thép, làm quay kim nam châm
B. Hút các mẩu giấy vụn
C. Đẩy các vật bằng sắt hoặc thép
D. Đẩy các mẩu giấy vụn Đáp án là: A. Hút các vật bằng sắt hoặc thép, làm quay kim nam châm </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Bóp tay vào con chút chít đồ chơi thấy có tiếng kêu. Âm thanh đó gây bởi dao động của bộ phận nào
A. Bàn tay
B. Bộ phận “lưỡi gà ” của con chút chít
C. Vỏ con chút chít
D. Không khí ở bên trong con chút chít Đáp án là: B. Bộ phận “lưỡi gà ” của con chút chít </s> | [
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<s> Chọn đáp án đúng với câu hỏi: James: “What’s the matter?” - Anne: “________”
A. That’s all right
B. Not at all
C. Nothing
D. It’s no trouble Đáp án là: C. Nothing </s> | [
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<s> Chọn đáp án đúng với câu hỏi: The word “ones” in paragraph 1 refers to ______.
A. questions
B. reactions
C. standards
D. evaluations Đáp án là: A. questions </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Hai điện tích điểm đặt gần nhau trong không khí có lực tương tác là F. Nếu giảm khoảng cách giữa hai điện tích hai lần và đặt hai điện tích vào trong điện môi đồng chất có hằng số điện môi ε = 3 thì lực tương tác là:
A. 2 F 3
B. 4 F 3
C. 3 F 2
D. 3 F 4 Đáp án là: B. 4 F 3 </s> | [
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678,
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<s> Chọn đáp án đúng với câu hỏi: Thời tiết ở Đông Trường Sơn trong câu thơ: “Trường Sơn đông nắng tây mưa - Ai chưa đến đó như chưa hiểu mình” chịu ảnh hưởng của loại gió nào sau đây?
A. Gió phơn
B. Gió đất
C. Gió biển
D. Gió mùa Đáp án là: A. Gió phơn </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Phát biểu nào dưới đây về thỏ là đúng?
A. Máu đi nuôi cơ thể là máu pha.
B. Có một vòng tuần hoàn.
C. Là động vật biến nhiệt.
D. Tim bốn ngăn. Đáp án là: D. Tim bốn ngăn </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Nhiễm sắc thể ở sinh vật nhân thực không có chức năng nào sau đây?
A. Lưu giữ, bảo quản và truyền đạt thông tin di truyền.
B. Phân chia đều vật chất di truyền cho các tế bào con trong quá trình phân bào.
C. Phản ánh mức độ tiến hóa của loài sinh vật bằng số lượng NST đơn trong nhân tế bào
D. Tham gia quá trình điều hòa hoạt động của gen thông qua các mức cuộn xoắn của NST Đáp án là: B. Phân chia đều vật chất di truyền cho các tế bào con trong quá trình phân bào. </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Hai dây dẫn thẳng, song song, dây 1 được giữ cố định, dây 2 có thể dịch chuyển. Dây 2 sẽ dịch chuyển về phía dây 1 khi
A. có hai dòng điện ngược chiều chạy qua.
B. chỉ có dòng điện mạnh chạy qua dây 1.
C. có hai dòng điện cùng chiều chạy qua.
D. dòng điện chạy qua dây 2 lớn hơn dòng điện chạy qua dây 1. Đáp án là: C. có hai dòng điện cùng chiều chạy qua. </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Sự lệch hướng chuyển động của các vật thể là hệ quả của chuyển động nào sau đây?
A. Chuyển động tự quay quanh trục của Trái Đất.
B. Chuyển động xung quanh các hành tinh của Trái Đất.
C. Sự chuyển động tịnh tiến của Trái Đất.
D. Chuyển động xung quanh Mặt Trời của Trái Đất. Đáp án là: A. Chuyển động tự quay quanh trục của Trái Đất. </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Một mảnh đất hình chữ nhật có chiều dài là 4x^2 + 20x + 25 (m), chiều rộng bằng 4x^2 + 12x (m). Biết chiều dài hơn chiều rộng là 41 m. Tính chu vi mảnh đất.
A. 242 m;
B. 240 m;
C. 244 m;
D. 246 m. Đáp án là: A. 242 m; </s> | [
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<s> Chọn đáp án đúng với câu hỏi: It’s difficult to tell him to give in because he is so big-headed.
A. wise
B. generous
C. modest
D. arrogant Đáp án là: C. modest </s> | [
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<s> Chọn đáp án đúng với câu hỏi: The word “ enclaves ” is closest in meaning to _______
A. organizations
B. regions
C. communities
D. countries Đáp án là: B. regions </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. deliver ed
B. visit ed
C. crook ed
D. recommend ed Đáp án là: A. deliver ed </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Cơ thể của động vật nguyên sinh có đặc điểm chung là
A. Có kích thước hiển vi, chỉ là một tế bào nhưng đảm nhiệm mọi chức năng sống
B. Có kích thước hiển vi, đa bào nhưng đảm nhiệm mọi chức năng sống
C. Có kích thước hiển vi, chỉ là một hoặc hai tế bào nhưng đảm nhiệm mọi chức năng sống
D. Có kích thước hiển vi, đơn bào hoặc đa bào đơn giản nhưng đảm nhiệm mọi chức năng sống Đáp án là: A. Có kích thước hiển vi, chỉ là một tế bào nhưng đảm nhiệm mọi chức năng sống </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Read the following passage and choose the best answer for each question. Identify your answer by writing the corresponding letter A, B, C or D on your answer sheet. Environmental Concerns Earth is the only place we know of on the universe that can support human life. (1) ________ human activities are making the planet less fit to live on. As the western world (2) _______ on consuming two- thirds of the world’s resources while half of the world’s population do so (3) ________ to stay alive we are rapidly destroying the (4) _______resource we have by which all people can survive and prosper. Everywhere fertile soil is (5) ___________built on or washed into the sea. Renewable resources are exploited so much that they will never be able to recover (6) ______. We discharge pollutants into the atmosphere without any thought of the consequences. As a result the planet’s ability to support people is being (7) _______ at the very time when rising human numbers and consumption are (8) _______ increasingly heavy demands on it. The Earth’s natural resources are there for us to use. We need food, water, air, energy, medicines, warmth, shelter and minerals to (9) _______ us fed, comfortable, healthy and active. If we are sensible in how we use the resources they will (10) _______ indefinitely. But if we use them wastefully and excessively they will soon run out and everyone will suffer. (1) ________ human activities are making the planet less fit to live on.
A. Although
B. Still
C. Yet
D. Despite Đáp án là: C. Yet </s> | [
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<s> Chọn đáp án đúng với câu hỏi: ý nghĩa quan trọng nhất của chiến thắng Biên giới thu đông năm 1950 là
A. Là chiến dịch tấn công lớn đầu tiên quân ta giành thắng lợi
B. Chứng tỏ quân đội ta đã trưởng thành
C. Chứng minh sự vững chắc của căn cứ địa việt Bắc
D. Ta giành được thế chủ động trên chiến trường chính (Bắc Bộ), mở ra bước phát triển mới của cuộc kháng chiến Đáp án là: D. Ta giành được thế chủ động trên chiến trường chính (Bắc Bộ), mở ra bước phát triển mới của cuộc kháng chiến </s> | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Most travel agents are prepared to ______ travel arrangements to meet individual requirements.
A. correct
B. adjust
C. adapt
D. tailor Đáp án là: D. tailor </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Giá trị của chữ số 2 trong số 17235 là:
A. 2
B. 20
C. 200
D. 2000 Đáp án là: C. 200 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Từ đầu thập kỉ 90 của thế kỉ XX đến nay ngành du lịch nước ta phát triển nhanh là do
A. Đời sống người dân được nâng cao.
B. Nhờ chính sách Đổi mới của nhà nước.
C. Nhà đầu tư nước ngoài đầu tư nhiều vào du lịch.
D. Tài nguyên du lịch phong phú đa dạng. Đáp án là: B. Nhờ chính sách Đổi mới của nhà nước. </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Đặc trưng cơ bản về địa hình của miền Bắc và Đông Bắc Bắc Bộ không phải là
A. đồi núi thấp chiếm ưu thế
B. các dãy núi có hướng vòng cung
C. gồm các bề mặt cao nguyên badan
D. đồng bằng mở rộng Đáp án là: C. gồm các bề mặt cao nguyên badan </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Một thuyền đi từ bến A đến bến B cách nhau 6 km rồi lại trở về A. Biết rằng vận tốc thuyền trong nước yên lặng là 5 km/giờ, vận tốc nước chảy là 1 km/giờ. Vận tốc của thuyền so với bờ khi thuyền đi xuôi dòng và khi đi ngược dòng lần lượt là
A. 6 m/s ; 4 m/s.
B. 4 m/s ; 6 m/s.
C. 4 km/giờ ; 6 km/giờ
D. 6 km/giờ ; 4 km/giờ Đáp án là: D. 6 km/giờ ; 4 km/giờ </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Trong mặt phẳng với hệ tọa độ Oxy, cho đường thẳng (d):2x+3y+5=0. Qua phép đối xứng trục Ox, phương trình ảnh của đường thẳng (d) là
A.x + y - 2 = 0
B. 2x - 3y + 5 = 0
C. 2x - 3y - 5 = 0
D. 2x + 3y - 5 = 0 Đáp án là: B. 2x - 3y + 5 = 0 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Thép là sản phẩm của ngành công nghiệp nào sau đây?
A. Thực phẩm.
B. Sản phẩm hàng tiêu dùng.
C. Luyện kim.
D. Điện tử - tin học. Đáp án là: C. Luyện kim. </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Theo thuyết Bo, bán kính quỹ đạo thứ nhất của electron trong nguyên tử hidro là cho hằng số điện Hãy xác định tốc độ góc của electron chuyển động tròn đều quanh hạt nhân trên quỹ đạo này:
A.
B.
C.
D. Đáp án là: D. </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Vận tốc của chất điểm dao động điều hoà có độ lớn cực đại khi:
A. Li độ có độ lớn cực đại.
B. Gia tốc có độ lớn cực đại.
C. Li độ bằng không.
D. Pha cực đại. Đáp án là: A. Li độ có độ lớn cực đại. </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Công suất tỏa nhiệt ở một vật dẫn không phụ thuộc vào yếu tố nào sau đây?
A. Hiệu điện thế ở hai đầu vật dẫn.
B. Cường độ dòng điện qua vật dẫn.
C. Thời gian dòng điện đi qua vật dẫn.
D. Điện trở của vật dẫn. Đáp án là: C. Thời gian dòng điện đi qua vật dẫn. </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Cho các thí nghiệm sau: (1) Khi cho Cu vào dung dịch FeCl 3 ; (2) H 2 S vào dung dịch CuSO 4 ; (3) HI vào dung dịch FeCl 3 ; (4) Dung dịch AgNO 3 vào dung dịch FeCl 3 ; (5) Dung dịch NaHSO 4 vào dung dịch Fe(NO 3 ) 2 ; (6) CuS vào dung dịch HCl. Số cặp chất phản ứng được với nhau là:
A. 2
B. 4
C. 5
D. 3 Đáp án là: C. 5 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Không thể nói về hằng số điện môi của chất nào dưới đây?
A. Không khí khô.
B. Nước tinh khiết,
C. Thủy tinh.
D. dung dịch muối. Đáp án là: D. dung dịch muối </s> | [
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<s> Chọn đáp án đúng với câu hỏi: 23 giờ ngày 13/8....đã ban bố “ Quân lệnh số 1”, chính thức phát lệnh Tổng khởi nghĩa trong cả nước.
A. Ủy ban khởi nghĩa toàn quốc
B. Trung ương Đảng
C. Tổng bộ Việt Minh
D. Ủy ban dân tộc giải phóng Việt Nam Đáp án là: A. Ủy ban khởi nghĩa toàn quốc </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Nhược điểm chính của ngành vận tải đường sắt là
A. Đòi hỏi đầu tư lớn để lắp đặt đường ray
B. Đầu tư lớn để xây dựng hệ thống nhà ga
C. Chỉ hoạt động được trên các tuyến đường cố định có đặt sẵn đường ray
D. Yêu cầu đội ngũ công nhân lớn để quản lý và điều hành công việc Đáp án là: C. Chỉ hoạt động được trên các tuyến đường cố định có đặt sẵn đường ray </s> | [
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<s> Chọn đáp án đúng với câu hỏi: He is a music ___________. He writes beats and lyrics for songs.
A. composer
B. leader
C. mixture
D. author Đáp án là: A. composer </s> | [
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<s> Chọn đáp án đúng với câu hỏi: In line 10, water that is “shallow” is NOT
A. deep
B. coastal
C. tidal
D. clear Đáp án là: A. deep </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Find one odd word for each question.
A. popular
B. reporter
C. exciting
D. educational Đáp án là: B. reporter </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Chỉ dùng quỳ tím, có thể nhận biết ba dung dịch riêng biệt nào sau đây?
A. HCl, NaNO 3, Ba OH 2
B. H 2 SO 4, HCl, KOH
C. H 2 SO 4, NaOH, KOH
D. Ba NO 3 2, NaCl, HCl Đáp án là: A. HCl, NaNO 3, Ba OH 2 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Cầu Đu-me là tên gọi khác của cây cầu nào được thực dân Pháp xây dựng trong cuộc khai thác thuộc địa lần thứ nhất ở Đông Dương?
A. Cầu Chương Dương
B. Cầu Long Biên
C. Cầu Tràng Tiền
D. Cầu Hàm Rồng Đáp án là: B. Cầu Long Biên </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Diện tích S của hình phẳng giới hạn bởi đồ thị hàm số y=2/((x+1)^2), trục hoành và hai đường thẳng x = 0, x = 4 là:
A. S=5/8;
B. S=8/5;
C. S=2/25;
D. S=4/25. Đáp án là: B. S=8/5; </s> | [
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<s> Chọn đáp án đúng với câu hỏi: He was sent off for a clear ______ on the goal keeper in the first half.
A. foul
B. fault
C. mistake
D. error Đáp án là: A. foul </s> | [
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<s> Chọn đáp án đúng với câu hỏi: For the past few months she’s been as a street _________ selling fruit and vegetable.
A. dealer
B. trader
C. pusher
D. vendor Đáp án là: D. vendor </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Anh(chị) hãy chỉ ra mối quan hệ giữa hai sự kiện sau: • Tháng 7-1920, Nguyễn Ái Quốc đọc bản sơ thảo lần thứ nhất những luận cương về vấn đề dân tộc và thuộc địa của Lênin • Tháng 12-1920, Nguyễn Ái Quốc bỏ phiếu tán thành việc gia nhập Quốc tế cộng sản và thành lập Đảng cộng sản Pháp
A. Mối quan hệ giữa chuyển biến trong nhận thức và hành động
B. Mối quan hệ giữa lý luận với thực tiễn
C. Mối quan hệ giữa chuyển biến trong hành động và nhận thức
D. Mối quan hệ giữa thực tiễn với lý luận Đáp án là: A. Mối quan hệ giữa chuyển biến trong nhận thức và hành động </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Từ năm 1947 đến năm 1989, thế giới bị chi phối bởi
A. Trật tự hai cực Ianta.
B. Chiến tranh lạnh
C. Chiến lược toàn cầu của Mĩ.
D. trật tự thế giới đa cực. Đáp án là: B. Chiến tranh lạnh </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Chất nào sau đây là ankan?
A. C 2 H 5 OH.
B. C 3 H 8.
C. C 3 H 6.
D. C 3 H 4. Đáp án là: B. C 3 H 8. </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Đọc đọan văn và trả lời các câu hỏi từ 13, 14: “Tiếng Việt có những đặc sắc của một thứ tiếng đẹp, một thứ tiếng hay. Nói thể có nghĩa là nói rằng: tiếng Việt là một thứ tiếng hài hòa về mặt âm hưởng, thanh điệu mà cũng rất tế nhị, uyển chuyển trong cách đặt câu. Nói thế cũng có nghĩa là nói rằng: tiếng Việt có đầy đủ khả năng để diễn đạt tình cảm, tư tưởng của người Việt Nam và để thỏa mãn cho yêu cầu của đời sống văn hóa nước nhà qua các thời kì lịch sử.” (Đặng Thai Mai, Tiếng Việt, một biểu hiện hùng hồn của sức sống dân tộc ) Nội dung của đoạn văn trên là gì?
A. Tiếng Việt có những đặc sắc của một thứ tiếng đẹp, một thứ tiếng hay
B. Tiếng Việt là một thứ tiếng hài hòa về mặt âm hưởng
C. Tiếng Việt là một thứ tiếng hài hòa về mặt thanh điệu
D. Tiếng Việt là một thứ tiếng uyển chuyển trong cách đặt câu Đáp án là: A. Tiếng Việt có những đặc sắc của một thứ tiếng đẹp, một thứ tiếng hay </s> | [
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31214,
273,
2... | [
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<s> Chọn đáp án đúng với câu hỏi: Cho A: “Tập hợp các học sinh khối 10 học giỏi”, B: “Tập hợp các học sinh nữ khối 10 học giỏi”, C: “Tập hợp các học sinh nam khối 10 học giỏi”. Vậy tập hợp C là:
A. A ⊂ B;
B. B \ A;
C. A ∩ B;
D. A \ B. Đáp án là: D. A \ B </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Gọi B_n là tập hợp các bội số của n trong N. xác định tập hợp B_2∩B_4?
A. B_2
B. B_4
C. ∅
D. B_3 Đáp án là: B. B_4 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: The doctor said, “You really ought to rest for a few days. Jasmine."
A. The doctor strongly advised Jasmine to take a few days' rest.
B. The doctor suggested that Jasmine should take a short rest.
C. Jasmine's doctor told that she should rest for a few days.
D. It is the doctor's recommendation that Jasmine should take a short rest. Đáp án là: A. The doctor strongly advised Jasmine to take a few days' rest. </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Cho hai vectơ a→ và b→ thỏa mãn (a→)=(b→)=1 và hai vectơ u→=2/5a→−3b→ và v→=a→+b→ vuông góc với nhau. Xác định góc α giữa hai vectơ a→ và b→.
A. α=90^0;
B. α=180^0;
C. α=60^0;
D. α=45^0; Đáp án là: B. α=180^0; </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Phương trình ion thu gọn H + + OH - → H 2 O biểu diễn bản chất của các phản ứng hóa học nào sau đây?
A. HCl + NaOH → NaCl + H 2 O
B. NaOH + NaHCO 3 → H 2 O + Na 2 CO 3
C. H 2 SO 4 + BaCl 2 → 2HCl + BaSO 4
D. A và B đúng Đáp án là: A. HCl + NaOH → NaCl + H 2 O </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Hình lập phương có cạnh là 10m. Vậy thể tích hình đó là
A. 30 m^3
B. 100 m^3
C. 1000 m^3
D. 10 000 m^3 Đáp án là: C. 1000 m^3 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Khi chiếu ánh sáng trắng vào lăng kính thì chùm tia ló ra là một dải màu biến đổi liên tục từ đỏ tới tím, trong đó
A. màu đỏ ở dưới, màu tím ở trên
B. tia đỏ lệch ít nhất
C. tia tím lệch nhiều nhất
D. các tia lệch một góc như nhau Đáp án là: C. tia tím lệch nhiều nhất </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Tính đặc hiệu của mã di truyền là
A. các bộ ba nằm nối tiếp nhưng không chồng gối lên nhau
B. một bộ ba chỉ mã hoá cho một loại axit amin
C. nhiều loại bộ ba cùng mã hoá cho một loại axit amin
D. một số bộ ba cùng mang tín hiệu kết thúc dịch mã Đáp án là: B. một bộ ba chỉ mã hoá cho một loại axit amin </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Cho mệnh đề sau: “Trong một mặt phẳng, nếu hai đường thẳng cùng song song với đường thẳng thứ 3 thì hai đường thẳng đó song song với nhau”.
Đáp án nào dưới đây là cách viết khác với mệnh đề đã cho?
A. Trong một mặt phẳng, hai đường thẳng cùng song song với đường thẳng thứ 3 là điều kiện cần để hai đường thẳng đó song song với nhau;
B. Trong một mặt phẳng, hai đường thẳng cùng song song với đường thẳng thứ 3 tương đương với để hai đường thẳng đó song song với nhau;
C. Trong một mặt phẳng, hai đường thẳng song song với nhau là điều kiện đủ để hai đường thẳng đó cùng song song với đường thẳng thứ 3;
D. Trong một mặt phẳng, hai đường thẳng cùng song song với đường thẳng thứ 3 là điều kiện đủ để hai đường thẳng đó song song với nhau. Đáp án là: D. Trong một mặt phẳng, hai đường thẳng cùng song song với đường thẳng thứ 3 là điều kiện đủ để hai đường thẳng đó song song với nhau </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Find one odd word: Monday, Season, Tuesday, Friday
A. Monday
B. Season
C. Tuesday
D. Friday Đáp án là: B. Season </s> | [
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