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第1题

1.若 F(x) 是函数 f (x) 的任意一个原函数，则 f (x) 的所有原函数是( ) A. F(x)  C B. F(x) C. f (x)  C D. f (x)
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第2题

1. What is polite in China may not be polite in the United States. 2. You wished to see me because you are a writer, y
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第3题

In America, each person is expected to make decisions for himself or herself about all aspects of life—education, care
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第4题

20)The peasant went to town to buy a horse because ____. A. he knew he would meet his horse in town B. his horse was s
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