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rosephuthuy
2 năm trước
1 cần cẩu nâng vật khối lượng 20 tấn lên cao 50m tính công của cần cẩu khi vật chuyển động nhanh dần trong 25m đầu với a= 5cm/s rồi thẳng đều trong 25m còn lại với vận tốc 2m/s
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15. His parents won ' t buy him a new game, . . . . . . . . . . . . . . . . . . ? 16 . You ' ve just used the computer , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ? 17 . Turn off the television . . . . . . . . . . . . . . . . . . . . . . . . . . . . ? 18 . I ' m late for the party . . . . . . . . . . . . . . . . . . . . . . . . . ? 19 . They never go to the theatre . . . . . . . . . . . . . . . . . ? 20 . His mother is very proud of him . . . . . . . . . . . . 21 . The lift isn ' t working today . . . . . . . . . . . . . . . . . . . . . 22 . Nothing could be done . . . . . . . . . . . 23 . Everybody is here . . . . . . . . . . . . . . . . ? 24 . Those aren ' t your books , .... 25 . Neither of them offered to help you , .... ? 26 . There are many interesting programs tonight . . . . . . . . . 27 . You ' ve never been in Italy , . . 28 . No - one died in the accident , . . . . . . . . . . 29 . Let ' s dance together , . . . . . . . 30 . Don ' t talk in class , . . . . . 31 . Mr . White is a tailor , . . . . 32 . It isn ' t ready yet , . . . . . . . . . 33 . I am clever , . . 34 . This won ' t take long , .....? 35 . Don ' t touch that button , .......? 36 . The children can read English , .......? 37 . Your grandfather was a millionaire , . . . . 38 . Your brother ' s here ,.....? Giúp em với ạ❤

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