user-avatar
ducan14060202
2 năm trước
Câu 10: Sau một thời gian hoạt động cánh quạt bị bám nhiều bụi vì cánh quạt cọ xát với không khí, bị nhiễm điện nên hút nhiều bụi. một số chất nhờn trong không khí đọng lại ở cánh quạt và hút nhiều bụi. bụi có chất keo nên bám vào cánh quạt. cánh quạt bị ẩm nên hút nhiều bụi. Câu 11: Tác dụng hóa học của dòng điện được ứng dụng để chế tạo đèn dây tóc.chế tạo ấm điện đun nước.chế tạo cần cẩu điện.mạ kim loại.
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

16. I can’t cook as well as my mother does. A. My mother cook better than I am. B. My mother is a better cook than I am. C. My mother cooks as well as I do. D. My mother is a worse cook than I am. 17. Lan has collected far more coins than her brother has A. Lan’s brother has collected no more coins than her. B. Lan’s brother has collected more coins than her. C. Lan’s brother has collected far fewer coins than her. D. Lan’s brother hasn’t collected as many coins as her. 18. We’ve never seen a prettier firework display before. A. This firework display isn’t as pretty as those we’ve seen. B. This is the prettiest firework display we’ve ever seen. C. This firework display is prettier than some we’ve ever seen. D. This is one of the prettiest firework displays we’ve ever seen. 19. Ho Chi Minh is the largest city in Viet Nam. A. No other city in Viet Nam is as large as Ho Chi Minh. B. Ho Chi Minh is as large as other cities in Viet Nam. C. All the cities in Viet Nam are large. D. All the cities in Viet Nam are larger than Ho Chi Minh. 20. This is the best music I have ever heard. A. I've never heard better music than this. B. I've ever heard such a good music as this. C. I've ever heard so good music as this. D. This is the first time I've heard this good music. 21. My uncle doesn’t drive so carefully as my aunt. A. My uncle drives more carefully than my aunt. B. My aunt is a more careful driver than my uncle. C. My aunt drives less carefully than my uncle. D. My aunt is a more careful driver as my uncle. 22. Jack plays tennis the best in the club. A. No one can beat Jack at tennis. B. Jack plays tennis better and better. C. Jack plays tennis not worse than anyone in the club. D. No one in the club plays tennis as well as Jack. 23. Helen can play the piano better than Ann. A. Ann is the best player. B. Ann can play the piano as well as Helen. D. Ann can play the piano better than Helen. D. Ann can’t play the piano as well as Helen. 24. He is the most generous man I have ever met. A. I have never met a man like him. B. I have never met such a generous man. C. I have never met a generous man as him. D. He is the most generous man that I met. 25. Nam is better at English than Linh. A. Linh isn’t as bad at English as Nam. B. Nam isn’t as good at English as Linh. C. Nam is worse at English than Linh. D. Linh isn’t so good at English as Nam. 26. China is the largest country in the Asia. A. Any other country in the Asia is larger than Chinese. B. No other country in the Asia is as large than Chinese. C. No other country in the Asia is as large as Chinese. D. If she has much money, she wants to buy a house in Vinhome. 27. The villa painted in pink is not so beautiful as the villa painted in white A. The villa painted in white is as beautiful as the villa painted in pink . B. The villa painted in pink is more beautiful than the villa painted in white. C. The villa painted in white is more beautiful than the villa painted in pink. D. The villa painted in white is not as beautiful as the villa painted in pink 28. Mike doesn’t cook as well as Barbara does. A. Barbara cooks as well as Mike does. B. Barbara cooks better than Mike does. C. Barbara is the best cook of all. D. Barbara doesn’t cook better than Mike. 29. Ankara is only smaller than Istanbul, the biggest city in Turkey. A. Ankara is the second biggest city in Turkey. B. Ankara is bigger than Istanbul. C. Ankara is the biggest city in Turkey. D. Ankara is as big as Istanbul. 30. The books in Chinese are not so expensive as the books in English. A. The books in English are more expensive than those in Chinese B. The books in English are more expensive than Chinese. C. The books in English are more expensive than in Chinese. D. The books in English are more expensive than that in Chinese.

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