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<s> Chọn đáp án đúng với câu hỏi: Nowadays, most students wear _______.
A. school’s uniform
B. schools’ uniform
C. school uniform
D. uniform schools Đáp án là: C. school uniform </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Ở đoạn mở đầu Chuyện chức phán sự đền Tản Viên, tác giả vừa giới thiệu nhân vật vừa dẫn dắt người đọc đi ngay vào sự việc chính: Tử Văn đốt đền. Dòng nào dưới đây nêu không đúng tác dụng của lối mở đầu như vậy?
A.... | [
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<s> Chọn đáp án đúng với câu hỏi: Este X có công thức phân tử C 2 H 4 O 2. Đun nóng m gam X trong dung dịch NaOH vừa đủ đến khi phản ứng xảy ra hoàn toàn thu được 4.08 gam muối khan. Giá trị của m là
A. 1,8
B. 3,6
C. 4,2
D. 7,2 Đáp án là: C. 4,2 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Cho hàm số y = f(x) = 3x^4 – 4x^2 + 3. Trong các mệnh đề sau, mệnh đề đúng?
A. y = f(x) là hàm số chẵn;
B. y = f(x) là hàm số lẻ;
C. y = f(x) là hàm số không có tính chẵn lẻ;
D. y = f(x) là hàm số vừa chẵn vừa lẻ. Đáp án là: A. y = f(x) là hàm số chẵn; </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Cho biểu đồ sau: Trong giai đoạn 1990 – 2010, cơ cấu tổng sản phẩm trong nước phân theo khu vực kinh tế của Hoa Kì có sự chuyển dịch theo hướng
A. Tăng tỉ trọng khu vực dịch vụ, công nghiệp và xây dựng, giảm tỉ trọng khu vực nông, lâ... | [
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<s> Chọn đáp án đúng với câu hỏi: Cho phương trình mx^2−2x+4=0 ( tham số, ẩn số). Tìm tất cả các giá trị của tham số m để phương trình có hai nghiệm phân biệt?
A.m<1/4
B.m<1/4,m≠0
C.m>1/4
D.m∈R Đáp án là: B.m<1/4,m≠0 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: We are big fans of Rafael Nadal and Roger Federer, so not a match of theirs ________.
A. we had missed
B. did we miss
C. we didn't miss
D. we missed Đáp án là: B. did we miss </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Cho f(x)=ax^2+bx+c (a≠0). Điều kiện để f(x)<0, ∀x∈R là:
A. (a<0Δ≤0)
B. (a<0Δ=0)
C. (a>0Δ<0)
D. (a<0Δ<0) Đáp án là: D. (a<0Δ<0) </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Al có thể tan được trong nhóm các dung dịch nào sau:
A. CuSO 4, MgCl 2.
B. HCl, H 2 SO 4 loãng.
C. FeCl 2, KCl.
D. (HNO 3, H 2 SO 4 ) đặc nguội. Đáp án là: B. HCl, H 2 SO 4 loãng. </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Ở ADN, tỉ số nào dưới đây đặc trưng cho loài?
A. A+T/G+X
B. A-T/G-X
C. A/T
D. G/X Đáp án là: A. A+T/G+X </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Such a doctor _________ retire from his job before the retirement age.
A. as well as
B. may as well
C. so as to
D. as much as Đáp án là: C. so as to </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Quan sát trường hợp minh họa sau đây và hãy xác định đột biến này thuộc dạng nào? ABCDEFGH → ABCDEFG
A. Mất đoạn nhiễm sắc thể
B. Đảo đoạn nhiễm sắc thể
C. Lặp đoạn nhiễm sắc thể
D. Chuyển đoạn nhiễm sắc thể Đáp án là: A. Mất đo... | [
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<s> Chọn đáp án đúng với câu hỏi: What the smoke and the noise, the party made me feel quite ill.
A. because of
B. through
C. owing to
D. with Đáp án là: D. with </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Tom is giving a compliment on Maria’s house. - Tom: “What a lovely house you have!” - Maria: “___________________”
A. Of course not, it’s not costly
B. Thank you. Hope you will drop in.
C. I think so.
D. No problem. Đáp án là: A. Of course not, it’s not costly </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Khi nói về quá trình nhân đôi AND của sinh vật nhân sơ, số kết luận đúng dưới đây là: I. Quá trình nhân đôi có sự tham gia của enzim ARN polimeraza. II. Quá trình nhân đôi bắt đầu đồng thời ở nhiều vị trí trên phân tử ADN. III. Quá... | [
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<s> Chọn đáp án đúng với câu hỏi: Khu vực nào sau đây tập trung các nước có nền kinh tế phát triển chủ yếu dựa vào khai thác khoáng sản dầu khí?
A. Tây Nam Á và Trung Á.
B. Đông Nam Á, Nam Á.
C. Đông Nam Á và Tây Nam Á.
D. Đông Á và Đông Nam Á. Đáp án là: A. Tây Nam Á va... | [
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<s> Chọn đáp án đúng với câu hỏi: Ở một loài thực vật, alen A quy định quả tròn, alen a quy định quả dài; alen B quy định quả ngọt, alen b quy định quả chua; alen D quy định chín sớm, alen d quy định chín muộn. Biết 2 gen (B,b) và (D,d) cùng nằm trên 1 cặp NST và cách nhau 40 cM. ... | [
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<s> Chọn đáp án đúng với câu hỏi: Có hai điện tích điểm q1 và q2, chúng đẩy nhau. Khẳng định nào sau đây là đúng?
A. q 1 > 0 và q 2 < 0
B. q 1. q 2 = 0
C. q 1 < 0 và q 2 > 0
D. q 1. q 2 > 0 Đáp án là: D. q 1 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Một lượng khí ở 18 0 C có thể tích 1m 3 và áp suất 1 atm. Người ta nén đẳng nhiệt khí tới áp suất 3,5atm. Thể tích khí nén là:
A. 0,214m 3
B. 0,286m 3
C. 0,300m 3
D. 0,312m 3 Đáp án là: B. 0,286m 3 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Hội nghị thượng đỉnh về trái đất được tổ chức năm 1992 ở thành phố nào sau đây?
A. La Hay.
B. Rio de Janero.
C. Luân Đôn.
D. New York. Đáp án là: B. Rio de Janero. </s> | [
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<s> Chọn đáp án đúng với câu hỏi: which in (15)_______ reduces the amount of energy needed
A. reach
B. place
C. order
D. turn Đáp án là: D. turn </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Một vật tham gia đồng thời hai dao động điều hoà cùng phương: x 1 = 3cos(4 π t) cm, x 2 = 3cos(4 π t + π 3 ) cm. Dao động tổng hợp của vật có phương trình
A. x = 3 2 cos(4 π t + π 3 ) cm.
B. x = 3 2 cos(4 π t + π 6 ) cm.
C. x = 3cos(4 π t + π 6 ) cm.
D. x =... | [
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<s> Chọn đáp án đúng với câu hỏi: Laura is telling Bob about her exam results. ~Laura: "..............." ~Bob: "That's great. Congratulations!"
A. I've passed the exam with an A.
C. I'll get the exam results tomorrow.
B. I hope I'll pass the exam tomorrow.
D. I didn't do well in the exam Đáp án là: A. I've passed the e... | [
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<s> Chọn đáp án đúng với câu hỏi: Trong các mệnh đề sau đây, mệnh đề nào sai?
A. Nếu có ma→+nb→+pc→=0→ và một trong ba số m, n, p khác 0 thì ba vectơ a→, b→, c→ đồng phẳng.
B. Ba tia Ox, Oy, Oz vuông góc với nhau từng đôi một thì ba tia đó không đồng phẳng.
C. Cho hai vectơ không cùng phương a→ và b→. Khi đó ba vectơ a... | [
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<s> Chọn đáp án đúng với câu hỏi: Hỗn hợp CH 3 COOC 2 H 5, HCOOC 3 H 5 và HCOOC 3 H 3. Hỗn hợp X có tỉ khối hơi so với O 2 là d X O 2 = 2,7. Đốt cháy hoàn toàn 0,015 mol X; sau phản ứng thu được hỗn hợp sản phẩm Y. Hấp thụ Y vào dung dịch Ca(OH) 2 dư. Kết luận nào dưới đ... | [
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<s> Chọn đáp án đúng với câu hỏi: Tên đúng của chất CH 3 –CH 2 –CH 2 –CHO là gì?
A. Propan-1-al.
B. Propanal.
C. Butan-1-al.
D. Butanal. Đáp án là: D. Butanal </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Hai góc nhọn α và β phụ nhau, hệ thức nào sau đây là sai?
A. sin α = cos β
B. tan α = cot β
C. cotβ=1/(cotα)
D. cos α = − sin β Đáp án là: D. cos α = − sin β </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Một con lắc đơn có chu kì dao động với biên độ nhỏ là 1s dao động tại nơi có g = π 2 m / s 2. Chiều dài của dây treo con lắc là:
A. 15 cm
B. 20 cm
C. 25 cm
D. 30 cm Đáp án là: C. 25 cm </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Khi bị mỏi cơ, chúng ta cần làm gì
A. Nghỉ ngơi hoặc thay đổi trạng thái cơ thể
B. Xoa bóp tại vùng cơ bị mỏi để tăng cường lưu thông máu
C. Cả A và B
D. Uống nhiều nước lọc Đáp án là: C. Cả A và B </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Điều nào không đúng về sự liên quan giữa ổ sinh thái và sự cạnh tranh giữa các loài
A. Những loài có ổ sinh thái giao nhau càng lớn thì cạnh tranh với nhau càng mạnh
B. Những loài có ổ sinh thái giao nhau càng ít thì cạnh tranh với nh... | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: H ợp chất X có công thức phân tử C 2 H 8 O 3 N 2. Cho 16,2 gam X ph ản ứng hết với 400 ml dung dịch KOH 1M. Cô cạn dung d ịch thu được sau phản ứng th ì được phần hơi và phần chất rắn. Trong phần hơi có chứa amin đa chức, trong phần c... | [
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<s> Chọn đáp án đúng với câu hỏi: Many young couples ______ an apartment until they've saved enough to buy a house.
A. charter
B. rent
C. hire
D. employed Đáp án là: B. rent </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Trong hệ trục toạ độ Oxy, đồ thị quan hệ giữa điện áp hai đầu cuộn cảm thuần và dòng điện trong mạch điện xoay chiều là:
A. Đường thẳng
B. Đường hình sin
C. Đường paranol
D. đường elip Đáp án là: D. đường elip </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Đặc điểm lớn nhất của cách mạng Việt Nam thời kỳ 1954 - 1975 là gì?
A. Một Đảng lãnh đạo nhân dân tiến hành đồng thời hai chiến lược cách mạng ở hai miền Nam - Bắc
B. Đảng lãnh đạo cả nước đi lên xây dựng chủ nghĩa xã hội
C. ... | [
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<s> Chọn đáp án đúng với câu hỏi: Tổ chức liên minh khu vực ở châu Phi là
A. ASEAN.
B. NATO.
C. AU.
D. SENTO. Đáp án là: C. AU. </s> | [
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<s> Chọn đáp án đúng với câu hỏi: - John: “What an attractive hair style you have got, Mary.” - Mary: “____________”
A. I don't like your saying.
B. Thank you very much, i'm afraid.
C. Thank you for your compliment.
D. You are telling a lie. Đáp án là: A. I don't like your saying. </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Một chiếc lốp ô tô chứa không khí ở áp suất 5,5bar và nhiệt độ 27 0 C. Khi xe chạy nhanh, lốp xe nóng lên làm nhiệt độ không khí trong lốp tăng lên tới 52 0 C. Áp suất của không khí trong lốp xe lúc này là:
A. 6,96 bar
B. 4,96 bar
C. 7... | [
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<s> Chọn đáp án đúng với câu hỏi: Vùng nào sau đây vừa có thế mạnh về chăn nuôi trâu bò, vừa có thế mạnh về đánh bắt thủy sản?
A. Tây Nguyên.
B. Trung du miền núi Bắc Bộ.
C. Đồng bằng sông Cửu Long.
D. Đông Nam Bộ. Đáp án là: B. Trung du miền núi Bắc Bộ. </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Có 2 dung dịch riêng lẻ, chứa các anion NO 3 -, CO 3 2-. Có thể dùng những hóa chất nào sau đây để nhận biêt được từng ion trong dung dịch đó?
A. Dung dịch HCl và Cu
B. Dung dịch HCl và CuO
C. Dung dịch HCl và Br 2
D. Dung dịch HCl và dung dịch Na... | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Ở người, alen A quy định không bị bệnh N trội hoàn toàn so với alen a quy định bị bệnh N, alen B quy định không bị bệnh M trội hoàn toàn so với alen b quy định bị bệnh M. Hai gen này nằm ở vùng không tương đồng trên nhiễm sắc thể gio... | [
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30... | [
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<s> Chọn đáp án đúng với câu hỏi: Choose the word whose stress pattern is differently from those of the other words.
A. amphibian
B. champagne
C. cathedral
D. creature Đáp án là: D. creature </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Khi nói về kích thước của quần thể sinh vật, phát biểu nào sau đây đúng?
A. Nếu kích thước quần thể vượt quá mức tối đa thì cạnh tranh giữa các cá thể trong quần thể tăng cao dẫn tới có thể sẽ làm tiêu diệt quần thể
B. ... | [
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<s> Chọn đáp án đúng với câu hỏi: They decided to postpone their holiday until next year.
A. cancel
B. spoil
C. endanger
D. continue Đáp án là: D. continue </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Một khung dây dẫn phẳng dẹt, quay đều quanh trục Δ nằm trong mặt phẳng khung dây, trong một từ trường đều có véc tơ cảm ứng từ vuông góc với trục quay Δ. Từ thông cực đại qua diện tích khung dây bằng 2 Wb. Tại thời điểm t, từ t... | [
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<s> Chọn đáp án đúng với câu hỏi: Ứng dụng nào sau đây không phải của S
A. Làm nguyên liệu sản xuất axit sunfuric
B. Làm chất lưu hóa cao su
C. Khử chua đất
D. Điều chế thuốc súng đen Đáp án là: C. Khử chua đất </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Cặp số nào sau đây là một nghiệm của phương trình
A.(1;−1)
B.(3;1)
C.(−1;1)
D.(1;3) Đáp án là: C.(−1;1) </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Dưới thời vua Lê Thánh Tông, chế độ ban cấp ruộng đất làm bổng lộc cho quý tộc, quan lại cao cấp từ tứ phẩm trở lên được gọi là
A. quân điền.
B. lộc điền.
C. phúc điền.
D. thọ điền. Đáp án là: B. lộc điền. </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Vật thật nằm trước thấu kính và cách thấu kính một khoảng d với f < d < 2f thì cho
A. Ảnh thật, cùng chiều và nhỏ hơn vật.
B. Ảnh thật, ngược chiều và lớn hơn vật.
C. Ảnh thật, ngược chiều và nhỏ hơn vật.
D. Ảnh thật, ngư... | [
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<s> Chọn đáp án đúng với câu hỏi: Tính chất nhiệt đới gió mùa ẩm của khí hậu nước ta không biểu hiện ở đặc điểm nào sau đây?
A. Lượng bức xạ mặt trời lớn.
B. Nhiệt độ cao, số giờ nắng nhiều.
C. Lượng mưa và độ ẩm của không khí lớn.
D. Xuất hiện hi... | [
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<s> Chọn đáp án đúng với câu hỏi: Một người cân nặng 60kg chạy từ tầng một lên tầng hai cao hơn tầng một 4 m. Thời gian đi lên là 20 giây. Tính công suất của người đó?
A. 100 W.
B. 120 W.
C. 140 W.
D. 160 W. Đáp án là: B. 120 W. </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Tây Nguyên là vùng
A. giàu tài nguyên khoáng sản.
B. có độ che phủ rừng thấp.
C. có trữ năng thuỷ điện khá lớn.
D. có một mùa đông lạnh. Đáp án là: C. có trữ năng thuỷ điện khá lớn. </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Khi đun nóng hỗn hợp gồm C 2 H 5 O H và C H 3 O H với H 2 S O 4 đặc ở 140 ° C có thể thu được số ete tối đa là:
A. 3
B. 4
C. 5
D. 6 Đáp án là: A. 3 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Đặt một hiệu điện thế xoay chiều có giá trị hiệu dụng không đổi vào hai đầu đoạn mạch RLC không phân nhánh. Hiệu điện thế giữa hai đầu
A. tụ điện luôn cùng pha với dòng điện trong mạch
B. cuộn dây luôn ngược pha với hiệu điẹ... | [
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<s> Chọn đáp án đúng với câu hỏi: Công suất là
A. Công thực hiện được trong một giờ.
B. Công thực hiện được trong một giây.
C. Công thực hiện được trong một đơn vị thời gian.
D. Công thực hiện được trong một ngày. Đáp án là: C. Công thực hiện được trong một ... | [
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<s> Chọn đáp án đúng với câu hỏi: Khi nói về vỏ não người, điều nào sau đây là đúng?
A. Có diện tích bề mặt khoảng 1500 – 1800 c m 2
B. Dày khoảng 2 – 3 mm
C. Gồm có 5 lớp
D. Chủ yếu là tế bào hình que Đáp án là: B. Dày khoảng 2 – 3 mm </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: Một vật nặng gắn vào lò xo có độ cứng k = 200 N/m, dao động điều hòa với biên độ A = 10 cm. Khi vật nặng cách vị trí biên 6 cm nó sẽ có động năng:
A. 8400 J.
B. 0,84 J.
C. 0,16 J.
D. 0,64 J. Đáp án là: B. 0,84 J. </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Trong bảng HTTH, nhóm có độ âm điện lớn nhất là:
A. nhóm VII A (halogen).
B. nhóm VI A.
C. nhóm I A (kim loại kiềm)
D. nhóm khí trơ Đáp án là: A. nhóm VII A (halogen). </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Ưu thế nổi bật của kĩ thuật di truyền là:
A. Tạo ra được các thực vật chuyển gen do năng suất rất cao và có được nhiều đặc tính quý
B. Tạo ra được các động vật chuyển gen mà các phép lai khác không thể thực hiện được
C. ... | [
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<s> Chọn đáp án đúng với câu hỏi: Dựa vào đặc điểm có hay không có màng phospholipid kép, virus được chia làm 2 loại là
A. virus trần và virus có màng bọc.
B. virus DNA và virus RNA.
C. virus ở thực vật và virus ở động vật.
D. virus trần và virus DNA. Đáp án là: A. virus trần ... | [
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<s> Chọn đáp án đúng với câu hỏi: Hoàng Phủ Ngọc Tường từng giữ chức vụ nào dưới đây?
A. Tổng thư kí Hội Văn học nghệ thuật Bình Trị Thiên – Huế
B. Chủ tịch Hội Văn học nghệ thuật Bình Trị Thiên
C. Tổng biên tập tạp chí Cửa Việt
D. Tất cả các đáp án trên... | [
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<s> Chọn đáp án đúng với câu hỏi: Để hòa tan hoàn toàn 5,4 gam Al cần dùng vừa đủ Vml dung dịch NaOH 0,5M. Giá trị của V là:
A. 400.
B. 200.
C. 100.
D. 300. Đáp án là: A. 400. </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Hội nghị cấp cao ba nước Đông Dương được tiến hành trong khoảng thời gian nào?
A. Từ ngày 24 đến 30 - 3 - 1970.
B. Từ ngày 24 đến ngày 25 - 4 - 1970.
C. Từ ngày 24 đến ngày 27 - 5 - 1970.
D. Từ ngày 20 đến ngày 25 - 3 - 1970. Đáp án là: B. Tu... | [
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<s> Chọn đáp án đúng với câu hỏi: Đơn vị đo cường độ điện trường là:
A. V.m 2
B. V.m
C.V/m
D.V/m 2 Đáp án là: C.V/m </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Cho dung dịch NaOH vào dung dịch hỗn hợp chứa 0,01 mol HCl và 0,01 mol AlCl 3. Số mol NaOH tối thiểu phải dùng để lượng kết tủa lớn nhất và để kết tủa tan hết lần lượt là:
A. 0,01 và 0,02
B. 0,04 và 0,06
C. 0,03 và 0,04
D. 0,04 và 0,05 Đá... | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: An-đéc-xen sống ở thế kỷ nào?
A. XVII
B. XVIII
C. XIX
D. XX Đáp án là: C. XIX </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Sự sụp đổ của chế độ xã hội chủ nghĩa ở Liên Xô năm 1991 đã tác động đến quan hệ quốc tế là
A. chế độ xã hội chủ nghĩa trên thế giới sụp đổ hoàn toàn.
B. trật tự thế giới một cực hình thành.
C. hình thành trật tự t... | [
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<s> Chọn đáp án đúng với câu hỏi: Khi hơi nước bốc lên từ các đại dương sẽ tạo thành
A. Nước.
B. Sấm.
C. Mưa.
D. Mây. Đáp án là: D. Mây </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Cho hai vectơ i→ và j→ vuông góc với nhau, biết (i→)=(j→)=1, cho u→=i→−5j→ và w→=−i→−2j→. Khẳng định nào sau đây là đúng?
A. u→ và w→ ngược hướng;
B. u→ và w→ cùng hướng;
C. u→ và w→ không vuông góc;
D. u→ và w→ vuông góc. Đáp án là: C. u→ và w→ không vuông góc; </s> | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Dạng chính tắc của Elip là
A. (x^2)/(a^2)+(y^2)/(b^2)=1
B. (x^2)/(a^2)-(y^2)/(b^2)=1
C. y^2=2px
D. y=2px^2 Đáp án là: A. (x^2)/(a^2)+(y^2)/(b^2)=1 </s> | [
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2... | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: The word “ reckless ” in line 11 is closest in meaning to ______________.
A. unnecessary
B. limited
C. continuous
D. irresponsible Đáp án là: D. irresponsible </s> | [
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<s> Chọn đáp án đúng với câu hỏi: The word “ strength ” in the third paragraph is closest in meaning to ________.
A. endurance
B. basis
C. discovery
D. purpose Đáp án là: B. basis </s> | [
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29... | [
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1,
1,
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<s> Chọn đáp án đúng với câu hỏi: Choose the word which has the MAIN STRESS different from others.
A. perform
B. jumble
C. upset
D. surprise Đáp án là: B. jumble </s> | [
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278,
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6850,
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142... | [
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1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Hoi An ______________ an important trading centre in Southeast Asia.
A. used to be
B. used to being
C. was used to be
D. use to be Đáp án là: A. used to be </s> | [
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379,
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385,
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1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: một lượng X cần dùng vừa đủ 3,976 lít khí oxi (đktc), thu được 6,38 gam. Mặt khác, X tác dụng với dung dịch NaOH, thu được một muối và hai ancol là đồng đẳng kế tiếp. Công thức phân tử của hai este trong X là Hỗn hợp X gồm 2 este n... | [
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1,
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678,
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29901,
2730,
31214,
31500,
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8092,
207,
158,
29877,
207,
158,
31214,
... | [
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1,
1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Phan Châu Trinh chủ trương cứu nước bằng cách nào?
A. Tiến hành khởi nghĩa giành chính quyền
B. Dùng bạo lực để giành độc lập
C. Đấu tranh vũ trang kết hợp với đấu tranh chính trị
D. Tiến hành cải cách nâng cao dân trí, dân quyề... | [
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865,
325,
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274,
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1963,
273,
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521,
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1,
1,
1,
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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. advises
B. raises
C. devises
D. goes Đáp án là: D. goes </s> | [
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678,
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274,
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298,
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29901,
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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<s> Chọn đáp án đúng với câu hỏi: Choose the letter A, B, C or D to complete the sentences He couldn’t have committed the crime _________ he was with me that day.
A. because
B. because of
C. although
D. despite Đáp án là: A. because </s> | [
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<s> Chọn đáp án đúng với câu hỏi: The smaller the room is, the ________ furniture it needs.
A. fewer
B. small
C. more
D. less Đáp án là: D. less </s> | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Ý nghĩa nào dưới đây không nằm trong thắng lợi của cuộc Tổng tiến công chiến lược 1972?
A. Mở ra một bước ngoặt cho cuộc kháng chiến chống Mĩ.
B. Giáng một đòn mạnh mẽ vào quân ngụy và quốc sách “bình định” của “Việt Nam hoa... | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Tính chất của đất feralit ở vùng đồi núi nước ta phụ thuộc chủ yếu vào
A. nguồn gốc của đá mẹ.
B. kĩ thuật canh tác của con người.
C. quá trình xâm thực - tích tụ.
D. điều kiện khí hậu ở miền núi. Đáp án là: C. quá trình xâm th... | [
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1,
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30975,
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1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Phát biểu nào sau đây đúng?
A. Các amino axit là những hợp chất có cấu tạo ion lưỡng cực.
B. Các amin đều làm quỳ ẩm chuyển sang màu xanh.
C. Pentapeptit là một peptit có 5 liên kết peptit.
D. Axit-2-aminoetanoic còn có tên là axit-β-aminoaxe... | [
1,
1,
29871,
678,
30975,
29876,
29871,
30128,
29976,
29886,
29871,
1715,
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865,
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1963,
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1,
1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Van Gogh decided to become a clergyman due to.
A. his love of art
B. his teachings at the Catholic School for boys
C. the Goupil & Cie art dealer firm
D. his developing enthusiasm in Christianity Đáp án là: D. his developing enthusiasm in Christianity </s> | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Diện tích rừng Amazon bị giảm nhiều vì
A. Nạn cháy rừng.
B. Chặt phá rừng do hoạt động kinh tế của con người.
C. Khai thác gỗ phục vụ công nghiệp chế biến
D. Tất cả các đáp án trên Đáp án là: D. Tất cả các đáp án trên </s> | [
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1,
29871,
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30128,
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865,
325,
31280,
29875,
274,
30057,
29884,
298,
228,
190,
146,
29875,
29901,
1640,
31214,
31500,
29876,
19538,
30103,
305,
5796,
207,
158,
30712,
... | [
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<s> Chọn đáp án đúng với câu hỏi: China is one of the most _______ populated areas in the world.
A. wastefully
B. perfectly
C. densely
D. completely Đáp án là: C. densely </s> | [
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<s> Chọn đáp án đúng với câu hỏi: 876+123=? Giá trị của tổng là:
A. 988
B. 998
C. 999
D. 1000 Đáp án là: C. 999 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Trong mạch RLC mắc nối tiếp, độ lệch pha giữa dòng điện và điện áp giữa hai đầu đoạn mạch phụ thuộc vào
A. cường độ dòng điện hiệu dụng trong mạch.
B. điện áp hiệu dụng giữa hai đầu đoạn mạch.
C. cách chọn gốc tính thời gian.... | [
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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 or phrase that is OPPOSITE in meaning to the underlined part in each of the following questions. The Son Doong Cave expedition is considered difficult and you must be physically active with regular trekking experien... | [
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360,
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596,
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<s> Chọn đáp án đúng với câu hỏi: Con người có tất cả bao nhiêu đôi dây thần kinh não?
A. 6 đôi
B. 31 đôi
C. 12 đôi
D. 24 đôi Đáp án là: C. 12 đôi </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Hai dao động cùng phương lần lượt có phương trình x 1 = A 1 cos πt + π 6 cm và x 2 = 6 cos πt − π 2 cm. Dao động tổng hợp của hai dao động này có phương trình x = 10 cos ωt + φ. Thay đổi A 1 đến khi biên độ A đạt giá trị cực tiểu. Khi đó giá... | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: Lan làm bài tập từ lúc 7 giờ. An hoàn thành xong bài tập lúc 7 giờ 30 phút. Hỏi An làm bài trong bao lâu?
A. 15 phút
B. 30 phút
C. 45 phút
D. 1 giờ 30 phút. Đáp án là: B. 30 phút </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Cho 13,23 gam axit glutamic tác dụng với dung dịch NaOH 1M (dư) thì thể tích dung dịch NaOH phản ứng tối đa là V ml. Giá trị của V là
A. 180
B. 90
C. 360
D. 120 Đáp án là: A. 180 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Cho 0,83g hỗn hợp gồm Al và Fe tác dụng với dung dịch H 2 SO 4 loãng dư. Sau phản ứng thu được 0,56 lít khí H 2 (đktc). Thành phần % theo khối lượng mỗi kim loại trong hỗn hợp lần lượt là:
A. 32,5% và 67,5%
B. 67,5% và 32,5%
C. 55% và 45%
D... | [
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<s> Chọn đáp án đúng với câu hỏi: Trong số các cây dưới đây, có bao nhiêu cây có rễ chùm? 1. Bưởi 2. Diếp cá 3. Dừa 4. Ngô 5. Bằng lăng
A. 3
B. 1
C. 2
D. 4 Đáp án là: C. 2 </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Cho mạch điện như hình vẽ: Đóng khóa K rồi dịch chuyển con chạy trên biến trở. Đề đèn sáng mạnh nhất thì phải dịch chuyển con chạy của biến trở đến vị trí nào?
A. Điểm M
B. Điểm N
C. Trung điểm của MN
D. Đèn luôn sáng bình thường ... | [
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<s> Chọn đáp án đúng với câu hỏi: Phát biểu nào sai khi nói về ảnh hưởng của hàm lượng nước trong đất đến sự hấp thụ nước và khoáng ở thực vật?
A. Hàm lượng nước trong đất thấp làm giảm sự xâm nhập của nước vào rễ.
B. Độ ẩm đất thấp làm giảm độ... | [
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<s> Chọn đáp án đúng với câu hỏi: Năm nay con 8 tuổi, tuổi mẹ gấp 3 lần tuổi con. Hỏi mẹ bao nhiêu tuổi?
A. 11 tuổi
B. 21 tuổi
C. 22 tuổi
D. 24 tuổi Đáp án là: D. 24 tuổi </s> | [
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<s> Chọn đáp án đúng với câu hỏi: Một chất điểm dao động điều hò a với phương trình x = Acos(ωt + φ), trong đó ω có giá trị dương. Đại lượng ω gọi là
A. chu kì của dao động.
B. biên độ dao động.
C. pha ban đầu của dao động.
D. tần số góc của dao động. Đáp án là: D. tầ... | [
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1... |
<s> Chọn đáp án đúng với câu hỏi: People believed that what they do on the first day of year will _____ their luck during the whole year.
A. control
B. influence
C. exchange
D. result Đáp án là: B. influence </s> | [
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437,
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278,
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2462,
310,
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... | [
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1,
1,
1,
1,
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1,
1,
1,
1,
1,
1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: So sánh số chỉ của lực kế trong thang máy với trọng lượng của vật ta có thể biết được:
A. Chiều di chuyển của thang máy
B. Chiều gia tốc của thang máy
C. Thang đang di chuyển nhanhn dần, chậm dần hay đều
D. Biết được cả 3 điều tr... | [
1,
1,
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1105,
872,
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29882,
577,
31500,
30103,
18558,
207,
140,
... | [
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1,
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1,
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1,
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1,
1,
1,
1,
1,
1,
1,
1,
1... |
<s> Chọn đáp án đúng với câu hỏi: Khi nói về mối quan hệ giữa các loài trong quần thể sinh vật, phát biểu nào sau đây đúng?
A. Ăn thịt lẫn nhau là hiện tượng xảy ra phổ biến ở các quần thể động vật trong tự nhiên
B. Quan hệ cạnh tranh trong quần thể sinh vật ... | [
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476,
2918,
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30712,
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1,
1,
1,
1,
1,
1,
1,
1... |
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