Đặt t =tanx với x thuộc (0;pi/2) thì t thuộc từ mấy đến mấy ạ?

Khi tiến hành quy hoạch thiết kế vườn phải dựa vào những nội dung nào?

II. Choose the words whose underlined part is pronounced differently from that of the others in each group 1. A. bird B. girl C. first D. sister 2. A. burn B. sun C. hurt D. turn 3. A. nurse B. picture C. surf D. return 4. A. neighbor B. favorite C. culture D. tourist 5. A. hobby B. hour C. hotel D. hot 6. A. prefer B. better C. teacher D. worker 7. A. bear B. hear C. dear D. near 8. A. collect B. concern C. concert D. combine 9. A. absent B. government C. dependent D. enjoy 10. A. future B. return C. picture D. culture 11. A. exciting B. excellent C. experience D. expensive 12. A. hobby B. cycle C. bye D. why 13. A. pottery B. collect C. melody D. monopoly 14. A. bird-watching B. children C. school D. challenge 15. A. future B. return C. picture D. culture 16. A. piano B. fish C. like D. badminton 17. A. arrange B. game C. make D. skate 18. A. mother B. some C. cold D. come 19. A. absent B. government C. dependent D. enjoy 20. A. telephone B. post office C. directory D. momen

Bài 1: Cho tam giác ABC vuông ở A có AB = 12cm, AC = 16cm. a) Tính độ dài trung tuyến AM. b) Kẻ đường cao AH. Tính chu vi tam giác ABH. c) Tia phân giác của góc AMB và góc AMC cắt AB, AC lần lượt ở D và E. Chứng minh: tam giác ABC và ADE đồng dạng. d)Tính: Sbdec và Sdme

mọi người giúp em vợi ạ em cân gap em cảm ơn moi nguoi nhieu

Giải hộ em với cần nhanh vote 5 sao

Tìm giá trị lớn nhất của M=(2x-5y)²-(15y-6x)²+|xy-90|

1. Many young people are fond of -------------- football and other kinds of sports. A. play B. to play C. playing D. played 2. They couldn’t help -------------- when they heard the little boy singing a love song. A. laughing B. to laugh C. laugh D. laughed 3. He want ................his house A. redecorated B. redecorating C. being redecorated D. to redecorate 4. I remember -------------- them to play in my garden. A. to allow B. allow C. allowing D. allowed 5. Did you accuse Nam of -------------- a plate? Well, I saw him -------------- it off the table with his elbow. A. break/ knock B. breaking/ knocking C. to break/ to knock D. breaking/ knock 6. We found it very difficult -------------- with Gamma. A. to work B. work C. working D. worked 7. I can’t read when I am traveling. It makes me -------------- sick. A. feel B. to feel C. felt D. feeling 8. I need -------------- what’s in the letter. Why don’t you let me -------------- it? A. to know/ to read B. know/ read C. to know/ read D. knowing/ read 9. I suggest -------------- some more mathematical puzzles. A. do B. to do C. doing D. done 10. We regret -------------- you that we cannot approve your suggestion. A. inform B. to inform C. informing D. informed 11. The driver stopped -------------- a coffee because he felt sleepy. A. have B. to have C. having D. had 12. Have you ever considered -------------- a pharmacist? A. become B. becoming C. to become D. became 13. You had better -------------- at home until you feel better. A. staying B. stayed C. to stay D. stay 14. I remember -------------- my mother said the grass in the garden needed --------------. A. to hear/cutting B. hear/cut C. heard/to cut D. hearing/ cutting 15. Peter sometimes help his sister --------------. A. do homework B. to do homework C. with homework D. all are correct 16. I would rather -------------- at home than --------------out with you. A. staying/going B. to stay/ to go C. stay/go D. stayed/went 17. She didn’t say a word and left the room. A. She left the room without saying a word B. She leaving the room without saying a word C. She left the room saying a word D. She left the room to say a word. 18. My father wanted me -------------- a pilot. A. become B. to become C. becoming D. became 19. Please wait a minute. My boss is busy -------------- something. A. write B. writing C. to write D. to writing 20. My teacher doesn’t allow us -------------- while he is explaining the lesson. A. talk B. to talk C. talking D. talked

vẽ mầm hốt hoảng / ngại ngùng NL : mn trong hd247 tránh xa em ra nha , lên cơn nghiện đồ r ..............................................................

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