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phamhongdannhi
2 năm trước
Xác định tỉ lệ theo khối lượng của KClO3 và KMnO4 cần để điều chế 1 lượng O2 như nhau với cùng hiệu suất (K=39; Cl=35,5; Mn=55, O=16)
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TET holiday is celebrated on the first day of the Lunar New Year in Viet Nam. Some weeks before the New Year, the Vietnamese clean their houses and paint the walls. New clothes are bought for the occasion. One or two days before the festival, people make Bank Chung, which is the traditional cake, and kinds of jam. On the New Year’s Eve, the whole family gets together for a reunion dinner. Every member of the family should be present during the dinner in which many different kinds of dishes are served. On the New Year morning, the young members of the family pay their respects to the elders. And the children receive lucky money wrapped in red tiny envelops. Then people go to visit their neighbors, friends and relatives. Question 29. Is TET holiday celebrated on the first day of the Lunar New Year in Viet Nam? A. Yes, it is B. No, they aren’t C. No, it isn’t. D. Yes, they are Question 30. Some weeks before the New Year, the Vietnamese often _____ A. They make Banh Chung and kinds of jam. B. clean their houses and paint the walls. C. They buy new clothes before the New Year. D. They receive lucky money in red envelops. Question 31. What do family members often do on the New Year’s Eve? A.They come to see the elderly in the neighborhood B. They come to see friends and relatives. C. They visit their neighbors, friends and relatives. D. They eat dinner together. Question 32. How many kinds of dishes are served in the reunion dinner? A. Some different kinds of dishes are served. B. A lot of different kinds of dishes are served. C. Only two kinds of dishes are served. D. Too many different kinds of dishes are served.

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