Đáp án: câu 4
người ít dùng sức hơn là người đứng trước trong hai người vì theo hình ta thấy (001 của người đứng trước bé hơn 002 suy ra F1>F2) ( lợi về lực) còn 001 của người đứng sau lớn hơn 002 nên F1<F2 (ko lợi về lực)
Giải thích các bước giải:
1. I’m interested in reading books. I enjoy ……………………………………………………………………. 2. He likes collecting stamps. His favourite ………………………………………………………… 3. Many young people love playing football. Many young people are fond………………………………………………………… 4. Is your mother keen on growing roses? Does …………………………………………………………? 5. This is the first time I have eaten such a delicious meal. I haven't.................................................................................................. 6. We haven't returned to our hometown for five years. The last time ………………………………………………………… 7. We have learnt English for 5 years. We started …………………………………………… 8. When did you last see her? How long …………………………………………………………? 9. The last time I went to Hanoi was over four years ago. I haven’t ………………………………………………………… 10. She has worked at this company for ten years. She started …………………………………………………………
Tìm m để pt : $\frac{√x + 3}{√x}$ = m + 1 có nghiệm
1. A. Arrived B. believed C. Received D. Hoped 2. A. Opened B. knocked C. Played D. Occurred 3. A. Rubbed B. tugged C. Stopped D. Filled 4. A. Dimmed B. travelled C. Passed D. Stirred 5. A. Tipped B. begged C. Quarrelled D. Carried 6. A. Tried B. obeyed C. Cleaned D. Asked 7. A. Packed B. added C. Worked D. Pronounced 8. A. Watched B. phoned C. Referred D. Followed 9. A. Agreed B. succeeded C. Smiled D. Loved 10. A. Laughed B. washed C. Helped D. Weighed 11. A. Walked B. ended C. Started D. Wanted 12. A. Killed B. hurried C. Regretted D. Planned 13. A. Visited B. showed C. Wondered D. Studied 14. A. Sacrificed B. finished C. Fixed D. Seized 15. A. Needed B. booked C. Stopped D. Washed 16. A. loved B. teased C. washed D. Rained 17. A. Packed B. punched C. Pleased D. pushed 18. A. filled B. naked C. suited D. wicked 19. A. Caused B. increased C. Practised D. Promised 20. A. Washed B. parted C. Passed D. Barked II. Choose the most suitable word or phrase for the blank: 1. The students are waiting __________________ the teacher. A. to B. at C. for D. Both A & B 2. She needs __________________ those medicines. A. has B. have C. having D. to have 3. Our teacher told us __________________ this book. A. read B. to read C. reading D. to reading 4. The ________ of the flu include a headache, a high temperature and aches in the body. A. symptom B. symptoms C. cure D. cures 5. They had to fill __________________ their medical records. A. in B. at C. on D. up 6. Were you ever __________________ from school last semester? A. late B. early C. absent D. lost 7. What’s wrong __________________ you? A. to B. with C. about D. for 8. Yesterday they had a __________________ check-up. A. medical B. medicine C. medicines D. medicinal 9. __________________ is a shop where you can buy medicines. A. Bakery B. Toy store C. Shoe store D. Drugstore 10. You can go back to the waiting room. A. follow B. return C. get on D. stand 11. She will be back __________________ a few minutes. A. in B. at C. on D. when 12. What’s your surname? A. middle name B. full name C. family name D. forename 13. __________________ is a condition of the body when it is too hot because of illness. A. Cold B. Fever C. Cough D. Flu 14. Follow __________________, please! A. I B. me C. my D. mine 15. She’s 145 centimeters __________________. A. tall B. high C. heavy D. old 16. Nga is filling ________________ her medical records. A. from B. for C. in D. on 17. The doctor needs ________________ her temperature. A. take B. taking C. to take D. will take 18. Would you ________________ English, please? A. talk B. speak C. tell D. spoke 19. We are having a ________________ check-up. A. medical B. medicine C. medically D. medicine 20. I need to weigh you. Would you get ________________ the scales, please? A. on B. in C. at D. to 21. The doctor ________________ you in a few minutes. A. see B. will see C. saw D. sees 22. My brother ________________ a new job there. A. start B. starts C. starting D. started 23. The nurse told Hoa ________________ back to the waiting room. A. goes B. going C. went D. to go 24. Hoa fills in her medical ________________. A. record B. measure C. form D. both A & C 25. The medicines ________________ the pain in my chest. A. prevented B. relieved C. protected D. hurt 26. Everybody ________________ the symptoms but nobody knows a cure. A. know B. knows C. knowing D. knew 27. Did you play baseball yesterday? A. Yes, I was B. No, I didn’t C. Yes, I did D. both B & C 28. We should ________________ our hands before meals. A. wash B. washed C. washing D. to wash 29. What was wrong ________________ you? A. with B. about C. from D. over 30. Did your Mom write a sick note ________________ you? A. from B. for C. of D. at
Tổng sô tiền lương của ba bác công nhân A,B,C là 13,5 đồng triệu đồng Đợt 1 mỗi bác lĩnh 2triệu đồng .Đợt 2 số tiền ba bác A,B,C lĩnh được tỉ lệ thuận với 2; 2,5 và 3 . Hỏi cả hai đợt mỗi bác lĩnh được bao nhiêu tiền lương?
tinh day cua tam giac abc co dien tich la 40 cm2 va chieu cao ah la 0,5dm
Cho tam giác ABC vuông cân tại A . Đường thẳng d qua A và không cắt cạnh BC . vẽ BM vuông góc d tại M , CN vuông góc d tại N . Chứng minh rằng tam giác MAB = tam giác NCA , BM^2=CN^2=AB^2
một hình thang có diện tích 148,2 cm2 .biết tổng độ dài hai đáy là 39 cm. chiều cao của hình đó là ? giúp tui với
một xe máy chuyển động đều lực kéo của động cơ là 1.600 n trong 1 phut công sản ra 960 kj. quãng trường xe đi được trong 30 phút là
Mn giải giùm em vs ạ Ai mà giải đc thì e sẽ gửi bạn đấy 20k thẻ vt
Trả lời nha mấy anh câu 1và 2 thui
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