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duongdemdua
2 năm trước
Đốt cháy hoàn toàn m gam một amino axit no phân tử chỉ chứa 1 nhóm NH2 và 1 nhóm COOH thu được 1,792 lít CO2 và 1,62 gam H2O. CT của amino axit là :
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I chọn câu trả lời đúng nhất. 1. They..........a hotel in Ha Noi in 2016 a. buiilds b.building c. to build d. built 2. He................English for 6 years a. have learnt b. has learnt c. is learning d. learns 3. Do you mind..........me? a. helping b. to help c. help d. are helping 4. He told me.................TV so much. a. Watch b. watching c. to watch d. watches 5. VietNamese language is different.................English language. a, as b. like c. from d. with 6. We must be there................7.30 and 8.15. a. between b. go c. before d. after 7. When my unccle was young, he used...............fishing on sunday. a. going b. go c. went d.to go 8. Mary likes ...................the piano. a. plays b. play c. played d. playing 9. Jance is...............................beautiful than her sister. a. like b. most c. more d. as 10. We have lived in Ha Noi...................1999. a. in b. on c. for d. since 11. The children aren't enough to look after................ a themselves b. ourselves c. herself d. forthemselves 12. We ought..............the wordrobe in the corner opposite the bed. a. put b. push c. to put d. to push 13. They wanted to know.............she left early a. Why b. what c. when d. where 14. She is a good............... a. drives b. driver c. driving d. drive

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