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问题 单项选择题

淋家误用汗法可引起（）

A.小腹弦急

B.便血

C.尿血

D.口舌干燥

E.大汗出

答案

参考答案：B

写作题
请阅读Jennifer的来信，仿照下面的范文替John或Mary写一封自荐信。

Dear Mr. Black,
     I'm Jennifer, a 16-year-old girl. I want to be a volunteer. I like fixing up things, so I can help fix up toys for kids in an elementary school.
                                                                                                              Jennifer
Dear Mr. Black,
                                                                                                                         
                                                                                                                         
                                                                                                                         
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问答题 简答题

简述光在海洋中的分布规律及其主要生态作用
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