Lấy ngón tay cái và ngón tay trỏ ép hai đầu một lò xo bút bi lại. Nhận xét về tác dụng của ngón tay lên lò xo và của lò xo lên ngón tay KO GIẢI THÍCH

65-4^x+2 = 2017^6 Giải giúp mk câu b với

tìm số TN có 2 chữ số biết rằng khi viết chữ số 2 vào bên trái và bên phải số đó tăng 36 lần

mọi người giúp em bài này với ạ 1) cho 4 điểm A,B,C,D. gọi I,J lần lượt là trung điểm của BC và CD. cm: 2(vectoAB+vectoAI+vectoJA+vectoDA)=3vectoDB

Mọi người giúp em câu 71 với ạ em cảm ơn mọi người nhiều ạ

Cách để làm một bài thơ 4chữ hay ho(đừng báo cáo nhá?

Hòa tan 19,2g hỗn hợp A gồm Fe và kim loại R hóa trị 2 vào dung dịch HCl dư thu được 8,96 lít ở đktc. Mặt khác khi hòa tan hoàn toàn 9,2g kim loại R trong 1000 ml dung dịch HCl 1m thu được dung dịch B làm quỳ tím chuyển đỏ. a) Xác định kim loại R Các anh giúp em với mai em phải nộp rồi

17. It's surprising now _____ beautiful girl can make so heinous crime. A. such B. so C. a such D. such a 18. These are _____ ugly chairs _____ I am going to give them away. A. so / that B. such / that C. so many / that D. so much / that 19. She is _____ kind that everybody loves her. A. such B. such a C. so D. so a 20. We have _____ in the house, so we needn't go shopping tomorrow. A. enough food B. food enough C. too food D. food too 21. The day was _____ that we had a shower four times a day. A. such a hot B. so hot C. very hot D. hot 22. It was _____ that I couldn't eat it. A. such a hard cake B. such hard cake C. so a hard cake D. so hard cake 23. He is _____ a busy man that he really needs a helper. A. so B. such C. very D. quite 24. It was _____ that we went for a picnic in the countryside. A. so nice a day B. such nice day C. so nice day D. such a nice day 25. My mathematics teacher is _____ person that all of us like his period. A. a such funny B. a so funny C. such funny D. such a funny 26. That old woman is _____ deaf to hear what her children say. A. so B. enough C. too D. not 27. He was _____ terrified to move. A. enough B. very C. too D. so 28. -"Was the boy upset about his bad marks?" -"Yes, he was _____ upset that he cried about it afterwards." A. very B. so C. such D. too 29. She hasn't got _____ to buy a car. A. enough money B. money enough C. so many money D. so much money 30. It was _____ a boring speech that I felt asleep. A. such B. so C. very D. too 31. It was _____ a boring film that Tom fell asleep. A. such B. so C. much D. too 32. My son is _____ young to go to school. A. very B. too C. so D. enough 33. -"What a cold day!" -"Yes, it's _____ that I have to wear two pullovers and a coat. A. such cold B. so cold C. too cold D. cold so 35. This skirt is _____ small for me. I need a larger size. A. so B. not C. too D. all are correct

lm hộ mik đg ghấp mik đg kiểm tra

11. Muslims worship in a ____________________ a. temple b. church c. mosque d. pagoda 12. She move the France, but we still keep in _____________ a. writing b. touch c. meeting d. contact 13. They visited Ho Chi Minh’s Mausoleum. a. an impressive tomb b. a large building c. an area for recreation d. a big coffin 14. The unit of ______________ used in the USA is dollar. a. currency b. money c. change d. bank-note 15. A _________ is a person whose job is to decide how to make things or decide their shape or appearance. a. sailor b. pen pal c. writer d. designer 16. Is military service compulsory in your country? a. maybe chosen or not b. must be done c. not requiring a payment d. give support 17. The choreographer has drawn ________ from Japanese dance. a. experience b. inspiration c. pattern d. material 18. He used to work on a ship. He was a __________ a. poet b. criminal c. designer d. sailor 19. In the 1990s, the sale of jeans ended going___________ a. up b. on c. over d. into 20. We have lived in this town ___________ 1998. a. for b. since c. ago d. in 21. The teacher lets me ___________home early because I felt ill. a. go b. going c. went d. to go