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hoangyenvu20
2 năm trước
Tính công suất hao phí do tỏa nhiệt trên đường dây khi truyền tải công suất điện 200 MW từ nguồn điện đến nơi tiêu thụ bằng cách dùng dây dẫn có điện trở tổng cộng 40 ohm. Hiệu điện thế ở hai đầu đường dây là 100 kV
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III.Put the following verbs into the correct tense. 1. Don’t walk in there! I (just/ clean) …………….the floor. 2. I don’t want to see that film again. I (already/see)………………. it twice. 3. Many famous paintings in the museum (steal)………………. by a thief last night. 4. Sandy (visit)………………. The Temple of Literature for ten years. 5. I think Linda (win)………………. the singing competition. 6. Tourists (go)………………. to Huong Pagoda every year to worship and enjoy beautiful views there. 7. How long………………. you (work)………………. for this foreign company? 8. She (give)………………. a very marvelous performance last night at the party. 9. A lot of postcards (send)………………. to friends or relatives every year. 10. A portrait of him (take)………………. by a famous photographer yesterday. 11.My brother (pass) ……………. the exam into university last year. 12. She (study) ……………. about people’s health for years. 13. The visit to the Temple of Literature (be) ……………. so meaningful to me. 14. All the homework (do) ……………. by Peter this morning. 15. John enjoys (arrange) ……………. flowers in the morning. 16. Junk food and seafood sometimes (give) ……………. an allergy. 17. All the students in our school (visit) ……………. the first University in Viet Nam. 18. You had better not (spend) ……………. much time on TV. 19. David and his father (visit) ……………. the Temple of Literature last week. 20. A new university (establish) ……………. in our province in the near future.

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