Bài 1: Chất nào sau đây có khả năng tham gia phản ứng trùng hợp tạp polime? A. benzen B. toluen C. 3 propan D. stiren

Cần cực gấp, làm 1 bài này thôi

Một thửa ruộng hình chữ nhật có chiều dài hơn chiều rộng 60m.Tính diện tích của thửa ruộng biết rằng nếu giảm chiều dài 2 lần và tăng chiều rộng lên 3 lần thì chu vi ko đổi.

ai làm được câu 23 xứng đáng có 10 người yêu ❤

Đặt câu có bộ phận trả lời câu hỏi như thế nào

Giúp tui với ạ. Vote full 5* với hay nhấtt

điều kiện loại1, câuloại 2, loại 3.(mình đang cần gấp giúp mình với mình cảm ơn trước ạ) cau1:If you don't try your best,you the next exam. A:will fail. B:fails. C:would come. D:would have come. cau2:If each person one more tree,the pollution problem worldwide would be solved. A:plants. B:planted. C:had planted. D:will plant. cau3:If our teacher were here now,he us with this difficult exercise. A:has helped. B:helps. C:will help. D:would help. cau4:If anyone ,please tell them I'm not at work today. A:will call. B:should call. C:called. D:calls. cau5:If you an important decision,you will think carefully. A:work. B:make. C:expect. D:do. cau6:You'll get pneumonia you your wet clothes. A:should-not change. B:don't-change. C:were-not to change. D:had you not changed. cau7::she able to walk faster If her shoes didn't have such high heels. A:could be. B:couldn't be. C:were. D:had been. cau8:I things on the installment system if I were you. A:wouldn't buy. B:don't buy. C:won't buy. D: wouldn't have bought. cau9:If anyone attacks me, my dear dog at his throat. A:would bite. B:will bite. C:bit. D:had bitten. cau10:I'll pay you double if you the work finished by friday. A:get. B:got. C: had got. D:are getting. cau11:had I know that you were in hospital,I you. A:would visit. B:will visit. C:would have visited. D: visit. cau12:you won't make better progress unless you class regulary. A:attend. B:attended. C:don't attend. D:didn't attend. cau13:If you ten minutes earlier,you would have a seat in the auditorium. A:arrive. B:arrived. C:had arived. D:arrives. cau14:If he hard,he the coming exam. A:stidied/would pass. B:doesn't study/ will surely pass. C:studies/can pass. D:hadn't studied/wouldn't have passed. cau15:If she asked you for hep, ? A:would you accept. B:you accept. C:will you accept. D:do you accept.

giúp mình bài này nhé có gì mình cho CTLHN, 5 sao và tim nhé cảm ơn mấy bạn nhé.

CMR: Với hai số dương `a,b` thì `a+b>=2sqrt(ab)`

2. In a few minutes’ time ,I (wait)……………………… for you here 3. The teacher hopes we (pass) …………………………………..our exam 4. We (see)……………………….. my mother tomorrow. 5. Tomorrow afternoon , we (fly)……………………………… over Caribbean 6. In ten years time, I (be) ……………………….boss of my own successful company. 7. Let’s have a party. – That’s a great idea. We (invite) …………………………….lots of people. 8. Sue and I have decided to have a party. We (invite)……………………….. lots of people. 9. When I retire I (go) ………………………………….back to Hanoi to live. 10. I (swim)……………………………………. tomorrow. 11. They are staying at the hotel in London. Tomorrow, they (travel)…………….… in Vietnam. 12. When they come tomorrow, we (swim) ……………………in the sea. 13. My parents (visit)……………………………….. Europe next week 14. Daisy (sit)……………………. on the plane tomorrow. 15. This evening my friends and I (watch) ………………a famous film at the cinema. 16. She (play)………………………. with her son tonight. 17. He (work)………………………… tomorrow. 18. They (make)………………………….. their presentation tomorrow morning. 19. Next year I (live)______ in London. 20. Tonight I (eat)_________ dinner with my family.