fail rồi xin lỗi :((
@Mốc
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#chucbanhoctotnhe;333
1 HÌNH CHỮ NHẬT NẾU TĂNG CHIỀU DÀI THÊM 20% THÌ DIỆN TÍCH TĂNG THÊM LÀ 45cm2. DIỆN TÍCH BAN ĐẦU CỦA HÌNH CHỮ NHẬT LÀ...m2
29. We cannot do it that way. A. It cannot do that way. B. It cannot be done that way. C. That way it can’t be done. D. That way can’t be done. 30. They think that the prisoner escaped by climbing over the wall. A. The prisoner is thought to escape by climbing over the wall. B. The prisoner is thought escaped by climbing over the wall. C. The prisoner is thought having escaped by climbing over the wall. D. The prisoner is thought to have escaped by climbing over the wall. 31.They believe that the thieves got in through the kitchen window. A. The thieves are believed to have got in through the kitchen window. B. The thieves are believed to get in through the kitchen window. C. They believe the thieves got in through the kitchen window. D. They believe the thieves have got in through the kitchen window. A. are reported to be B. are reported to have been C. are reporting to have been D. are reporting to be 33. We found that they had cancelled the game. A. We found that the game had been cancelled. B. The game had been cancelled. C. we found that the game had been cancelled by them. D. The game were found to be cancelled 34. Where did they make your shoes? A.Where were they made your shoes? B. Where did your shoes made? C.Where were your shoes made? D. Where were your shoes make? 35.Education _____ to be the most important element to develop a country. A. often be considered B. can often consider C. can often considered D. can often be considered 36.His relatives say that he is an adopted child.He is said ___an adopted child A. to be B. to being C. to been D. to have been 37.I found that what he said was incorrect .What he said ___ incorrect A. was found B.was found to be C.was founded D. has been found 38. We consider him the best speaker of the debate.He _____the best speaker of the debate A.is considered to be B. is considering. C.was considered D.was considering 39. He sent me a nice gift on my birthday. A. I was sent a nice gift on my birthday by him. B. A nice gift was sent me on my birthday by him. C. A nice gift was sent to me on my birthday by him. D. Both A & C are correct. 40. They began to build the bridge two months ago. A. The bridge was begun to build two months ago. B. The bridge was begun to be built two months ago. C. The bridge began to build two months ago. D. The bridge began to be built two months ago. 41._______________ by your father? A. Did that book write B. Did that book written C. Was that book written D. Was that book be writing
xác định hiểu câu hành động nói trong các câu : (1) Nó giết mày đấy ! Mày có biết không ? (2) Phrăng à , thầy sẽ không mắng con đâu. (3) Mọi người không nên làm thế.
16. People don’t use this road very often. A.This road don’t be used very often. B. This road is not used very often. C. This road is used not very often. D. This road is not often used. 17. Miller has taken a lot of photographs. A. Photographs have been taken by Miller. B. Photographs have been taken a lot of by Miller. C. A lot of photographs were taken by Miller. D. A lot of photographs have been taken by Miller. 18. The teacher gave us two very difficult exercises. A. We were given two very difficult exercises. B. Two very difficult exercises were given to the teacher. C. Two very difficult exercises were given to us. D. Both (A and (C are correct. 19. They said that he was all right . A.He said he was all right . B.They were said him was all right . C.He was said he was all right . D.He was said to be all right . 20. The lawyer is interviewing the witness. A. The witness is interviewed B. The witness is being interviewed C. The lawyer is interviewed D. The lawyer is being interviewed 21. They are taking photographs of the event. A. The event was taken photographs. B.The event is taken photographs. C. Photographs are taken of the event. D. Photographs of the event are being taken. 22. How do people learn languages? A.How are languages learned? B.How are languages learned by people? C. How languages are learned? D.Languages are learned how? 23. Nobody told me that George was ill. A. I was told that George wasn't ill. B. I wasn't told that George was ill. C. Geoge wasn't told to be ill. D. George was told not to be ill. 24. His colleagues gave him a present when he retired. A. He was given a present when he retired. B. A present was given by his colleagues when he retired. C. He was given a present by his colleagues when he retired. D. A present was given him when he retired. 25. We will send you the results as soon as they are ready. A. You will be sent the results as soon as they are ready, B. You will be sent the results as soon as they are ready by us. C. The results will be sent you by us as soon as they are ready. D. The results will be sent you as soon as they are ready by us. 26. Brian told me that somebody had attacked him in the street. A. I was told by Brian that somebody had attacked him in the street. B. I was told by Brian that he had been attacked in the street. C. Brian told me to have been attacked in the street. D. Brian told me that he had been attacked in the street. 27. They say that many people are homeless after the earthquake. A. They say many people to have been homeless after the tsunami. B. They say many people to be homeless after the tsunami. C. Many people are said to have been homeless after the tsunami. D. Many people are said to be homeless after the tsunami. 28. We’ll have to find a new secretary soon. A.A new secretary has to be found soon. B.A new secretary must be found soon. C. A new secretary is found soon. D. A new secretary will have to be found soon. 29. We cannot do it that way. A. It cannot do that way. B. It cannot be done that way. C. That way it can’t be done. D. That way can’t be done.
Cho pt: `X^2-5x+m=0` (m là tham số) a) Giải phương trình trên khi `m=6` b) Tìm `m` để `pt` trên có 2 nghiệm `x_1, x_2` thỏa mãn `|x_1-x_2|=0` - giải chi tiết( câu a không cần giải cũng được.
Câu 3: Một người chơi trượt tuyết bắt đầu thả trượt ván từ đỉnh một ngọn đồi xuống sườn dốc, dốc có dạng giống một mặt phẳng nghiêng. Ngọn đồi cao 30 m và khối lượng cả người và ván là 60 kg. Lấy g = 10 m/s ^ 2 . a) Tìm tốc độ của người đó ở chân đồi. Biết rằng ma sát trên mặt dốc không đáng kể do mặt tuyết rất trơn. b) Xác định tốc độ của người đó tại vị trí động năng bằng một nửa thế năng. c) Khi đến chân dốc, người đó để cho ván tiếp tục trượt tự do trên mặt phẳng ngang được 100 m nữa rồi dừng lại. Tìm lực ma sát trên mặt phẳng ngang tác dụng vào ván trượt.
Vẽ anime sasuke trong anime naruto
Đọc kỹ giải chính xác 5 sao hay nhất
Cho hàm số y=f(x)=2-x+x^2/x-1 A) Viết phương trình tiếp tuyến của C tại điểm M(2;4).
Tìm giá trị nhỏ nhất của bt: $\sqrt[]{1-x}$+ $\sqrt[]{1+x}$+ 2.$\sqrt[]{x}$
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