Các môi trường sắt,chân không,khí oxi,rượu âm truyền được trong môi trường nào? Hãy sắp xếp các môi trường truyền âm trên theo tốc độ truyền âm từ nhỏ đên lớn? Môn vật lí 7 Cảm ơn mng nhiều ạ🥰

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Bạn chỉ cần ghi A,B,C,D .tôi tin bạn Choose the word or phrase (A, B, C or D) that best fits the space in each sentence. 1. Donna has a flower shop in Los Angeles. She is a _______________. A. tourist B. grocer C. librarian D. florist 2. There is a large _________ institute in Nha Trang. A. sea B. sea water C. ocean D. oceanic 3. Can we travel across the river in this ______________? A. railway B. canoe C. minibus D. paddle 4. John wants to __________the place where he once lived in VN. A. visit B. meet C. stay D. live 5. I’m looking forward _________ seeing you in June. A. in B. with C. to D. on 6. Would you mind if I smoked?-_____________ A. I’d rather you didn’t. B.Yes, please. C. No, I wouldn’t . D. I’d rather you don’t. 7. Do you mind if I take a photo ? - ______ A. Please go ahead B. Yes, I do . C. Yes, please D. Yes, I mind 8. Would you mind _____________in the front seat of the taxi? A. seat B. sit C. sitting D. sits 9. It’s about _______________drive from the city center. A. twenty minutes B. twenty-minute C. minute- twenty D. twenty-minutes 10.Ha Long Bay is recognized by UNESCO as a _______________________ A. World Heritage Site B. World Health Organization C. Wonder of the World D. Friend of the Earth 11.The Browns decided__________aroundXuanHuong Lake. A. to paddle B. paddling C. paddle D. paddles 12.Andrew studies_________around the world, so he goes to Sapa. A. oceanic institute B. hotels C. islands D. tribes. 13.My family is living in a house______________in 2004. A. build B. building C. built D. builds 14.Would you mind if I _____________you some questions? A. asked B. asks C. asking D. to ask 15.The book _____________on the table is mine. A. lie B. lying C. to lie D. lies 16.She realized her alarm clock didn’t ________________. A. go off B. go C. get off D. stop 17.Could I help you ______________ your luggage? A. with B. of C. on D. to 18.It is difficult to find_______________at busy time in Da Lat. A. accommodation B. hotels C. guest houses D. All are correct 19.Are you a _______________ or are you living there ? A. touring B. tour C. tourists D. tourist 20.Do you mind closing the door?-________________________ A. No, of course not B. Please do C. Please go ahead D. I’d prefer you didn’t