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hoanvb000
2 năm trước
Một vật DĐĐH có phương trình là x = 4cos(4$\pi$t - $\frac{\pi}{6}$)(cm). Kể từ lúc t = 0, thời điểm đầu tiên mà vật trở lại vị trí ban đầu là
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VII. Read the passage and choose the best answer to each of the following questions. In the Hmong family, the husband plays an important role. He is the main worker of the family and cares all works of the whole family. The Hmong treasured sons over daughters. The mission of a wife in Hmong traditional family is to take care of children, cook meals and hand-make hemp and indigo color clothes and pieces of jewelry. The Hmong funerals are often held for 2 to 3 days. When a person dies, they will invite witch doctors for worship songs before shrouding. They use “khen” – a traditional instrument of Hmong people and drum in the rituals of the dead’s farewell funeral. After completing a burial, if the dead is a male, they leave 9 branches of a tree, 7 branches for the female to distract him/ her in order that they cannot return and harm their family members. Custom of “cuop vo” or stealing wife often happens when a man meets and loves a woman at the love markets, he will: steal” the woman and put her in the dark without food from 2 to 3 days. If the woman agrees to get married to him, he will go to her family to pay for her parent’s allowance. 77. What’s the main idea of this reading? A. Hmong customs C. Hmong’s Festival B. Hmong’s Wedding D. Hmong’s costume. 78. Who takes care of children in the Hmong family? A. the grandmother C. the grandfather B. the husband D. the wife 79. What does the word “worship” mean? A. a ceremony for burying a dead person. B. A ceremony for showing respect for God C. a marriage ceremony D. a farewell ceremony. 80. Which sentence is Not True about the Hmong people? A. the Hmong prefer sons to daughters B. it often takes the Hmong 2 to 3 days to held a funeral Drums are never used in a funeral of the Hmong people. D. 7 or 9 branches of a tree are left after the burial. hic giúp tui với

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