Chuyển động nào sau đây là chuyển động thẳng?Trình đọc Chân thực (1 Điểm) Một mẩu phấn được ném ra xa. Chuyển động của quả lắc đồng hồ. Hòn đá rơi từ trên cao xuống. Chuyển động của cái diều trên không trung.

Các câu hỏi liên quan

1. I’ve known him ________ I left high school. A. when B. since C. until D. during 2. I sat near the window whenever I ________ a bus. (sit - sat - sat) A. take B. took C. has taken D. am taking - Whenever + HTĐ / QKĐ 3. My brother _______ in the army from 1990 to 1995. A. served B. has served C. had served D. is serving 4. I met your English teacher while I walked down the street. A B C D 5. She _____ English before she came to England. A. studied B. had studied C. would study D. studies 6. I _________ here for hours and I feel tired. A. am standing B. was standing C. have been standing D. stood 7. When I was a child, I was riding a tricycle to school. A B C D 8. They have finished contacting everyone by 4:00 yesterday. A B C D 9. As you __________ your car at the moment, can I borrow it? A. don’t use B. aren’t using C. haven’t used D. won’t use 10. I _____ about him when he suddenly came in. (QKĐ) A. talk B. talked C. am talking D. was talking 11. Every 12 months, the Earth ________ the sun. A. circles B. circled C. has circled D. is circling 12. Listen! Someone ___________ up the stairs. A. is walking B. has walked C. will be walking D. will have walked 13. Right now, Jim __ the newspapers and Kathy ___ dinner. Last night at this time, they ___ the same thing A. is reading / is making / were doing B. reads / makes / had done C. has read / has make / are doing D. is reading / is making / did 14. My father usually __________ beer after meals but now he _________ tea. A. drank / was drinking B. drinks / is drinking C. has drunk / drinks D. drinks / drinks 15. When we __________ to see him last night, he ________ to music. A. come / is listening B. had come / listened C. came / was listening D. were coming / had listened 16. I _________ here for 10 years before you ________ last week. A. have worked / came B. have been working / come C. was working / come D. had been working / came 17. By the time Jack ________ with help, we ______ the work. A. comes / finished B. comes / will have finished C. will come / will have D. came / have finished