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truongks987
2 năm trước
Giải thích cho em vì sao đang từ `1/2` vecto AM sang bên kia lại thành `1/2 . 1/2` vecto AB
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Các câu hỏi liên quan

1. Who does Jim take ________ ? A. After. B. Up. C. in 2. I am waiting ________ the result of the test. A. after. B. for. C. on 3. They haven't agreed ______ what make of car they would buy. A. on. B. in. C. with 4. "who did you run ________ yesterday? " It was my old teacher. A. on. B. out of. C. into 5. If we don't conserve the natural gas, it will soon be used_______. A. up. B. off. C. to 6. Are you still looking _______ a job or have you already got one? A. after. B. up. C. for 7. After years of being badly treated, James doesn't believe _______ the good things in life any more A. on. B. in. C. about 8. Why did you stay _______ so late last night? A. in. B. up. C. on 9. When Mr. Brown went on a business trip ,Mrs. Smith took _______ his work A. over. B. up. C. off 10. Jim promised to pick me ________ from the airport A. over. B. up. C. on 11. Peter took _______ his rain coat before he came in A. over. B. up. C. off 12. You mustn't believe him. He made _______ the whole story which was completely wrong A. over. B. up. C. on 13. Many of my friends came to the airport to see me _______ A. over. B. up. C. off 14. The teacher told us to put _______ interesting details of the presentation A. up. B. down. C. away 15. It isthe shared mind that keeps us _______ A. up. B. together. C. with

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