单选题：What does paragraph 3 mainly discuss?__________

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What does paragraph 3 mainly discuss?__________ A．A Different effects of caffeinated coffee and decal on slee
B．B Different findings of Lotan Shiloh and a team about caffein
C．C The fact that the subjects slept 415 minutes per night after drinking deca
D．D The evidence that the subjects took half an hour to fall aslee

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Capital gain is from__________.

Capital gain is from__________.A．A increased value of stock sold six months afte

分类：卫生类题型：单选题

请在（50）处选择最佳答案。

请在（50）处选择最佳答案。

分类：卫生类题型：单选题

Many children in the United States like Thanksgiving because

Many children in the United States like Thanksgiving because__________.A．they ca

分类：卫生类题型：单选题

请在第（60）处填上最佳答案。

请在第（60）处填上最佳答案。A．about B．with C．around D．of

分类：卫生类题型：单选题

请在第（47）处填上最佳答案。

请在第（47）处填上最佳答案。

分类：卫生类题型：单选题