Cho mình hỏi mn có ai kiểm tra giữa kì 2 môn Sử chưa ạ?? Nếu rồi thì cho mình xin cái đề đc ko ạ🥺

Đảng ta đã căn cứ vào điều kiện thời cơ như thế nào để đề ra kế hoạch giải phóng hoàn toàn miền Nam?

Giúp vs ajjjjjjjjjjjjjjjj. Câu 7

Cho tam giác ABC vuông (Â = 90°), có AB =6 cm; BC = 10 cm. Vẽ đường phân giác AD (D thuộc BC). Từ D kẻ DE vuông góc AC (E thuộc AC). a) Chứng minh tam giác DEC ~ tam giác BAC b) Tính AC c) Tính BD và DC Giúp mik nha mik đang cần gấp huhu

Ai giúp em bài này với đi ạ Em cảm ơn nhiều

Phân biệt cung và góc lượng giác với cung và góc hình học

Complete the sentence with the suitable choice & explaination. 1. David was fed up. He ______ for the bus for an hour. A. had been waiting B. waited C. has been waiting D. was waiting 2. There was a knock on the door while we ______ the game show on TV. A. were enjoying B. enjoyed C. had enjoyed D. had been enjoying 3. I wondered why he ______ his job. A. has changed B. changes C. used to change D. had changed 4. After I ______ lunch, I looked for my bag. A. had B. had had C. have had D. has had 5. He ______ on his English study all yesterday evening. A. used to work B. had worked C. was working D. working 6. It is years since I ______ Tina. A. have seen B. see C. had seen D. saw 7. I asked my father why he ______ to this city, but he couldn’t answer. A. moving B. had moved C. will move D. has moved 8. The phone ______ suddenly while Joanna was doing the housework. A. rang B. was ringing C. had rung D. is ringing 9. It ______ as we drove slowly along the road. A. has snowed B. had snowed C. was snowing D. is snowing 10. Peter left half an hour ago. He ______ for you for a long time then. A. was waiting B. has been waiting C. will be waiting D. had been waiting 11. The inspector noticed that not everyone ______ their safety helmet. A. was being worn B. will have worn C. was wearing D. wearing 12. John went to the post office to ask about his package but they kept saying that it ______ yet. A. doesn’t arrive B. hadn’t arrived C. is arriving D. was on the way 13. When the original star of the play ______ ill, Mary ______ an unexpected chance to play the leading role. A. fell - got B. has fallen - would get C. was falling - has got D. falls - has been getting 14. We ______ up the hill for half an hour when we realized we ______ in the direction of the castle. A. were walking - haven’t been going B. had been walking - weren’t going C. have been walking - didn’t go D. had walked - wouldn’t be going 15. Dan made a lot of friends while he ______ around America. A. was travelling B. has travelled C. will be travelling D. had travelled

Hãy chứng minh có chí thì nên Không chép trên mạng

Cho 1,2g C tác dụng với 11,2l không khí thu được V1(l) hỗn hợp a) Sau phản ứng trên, sản phẩm gồm những chất nào? b) Tính V1 Giúp e với, gấp ạ

Choose the word whose underlined part is pronounced differently from the others. A. Looked. B. Watched. C. Wanted. D. Helped