user-avatar
thanhdat1503
2 năm trước
Trong mặt phẳng Oxy, cho Elip (E) có phương trình chính tắc $\frac{x^{2}}{25}$+$\frac{y^{2}}{9}$=1. Chu vi hình chữ nhật cơ sở của (E) là: A. 15 B. 16 C. 8 D. 32
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

23. The chemist's was open, so luckily I ____ buy some aspirin. A. can B. can't C. did can D. was able to 24. I'm sorry but we ____ come to your party next week. A. can't B. couldn't C . don't D. shouldn't 25. We had a party last night. ____ spend all morning clearing up the mess. A. I must have B. I've been to C. I've had to D. I've must 26. There was no one else at the box office. I ____ in a queue. A. didn't need to wait B. mustn't wait C. needn't have waited D. needn't wait 27. ____ I carry the bag for you? - Oh, thank you. A. Do B. Shall C. Will D. Would 28. We can't go along here because the road is ___. A. been repaired B. being repaired C. repair D. repaired 29. The story I've just read _____ Agatha Christie. A. was written B. was written from C. was written by D. wrote 30. Some film stars ____ be difficult to work with. A. are said B. say to C. say D. are said to 31. I'm going to go out and ____ tomorrow. A. have cut my hair B. have my hair cut C. let my hair cut D. my hair be cut 32. Wood ____ to make paper. A. is used B. are using C. uses D. has used 33. I like ____ to music, especially jazz. A. to listen B. listen C. listening D. to listening

2018 © Loga - Không Ngừng Sáng Tạo - Bùng Cháy Đam Mê
Loga Team