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问题 单项选择题

有一种文书通常用于一个公司与公司组织外的其他人进行书面交际沟通，它是商务交往中用的最多的工具，这种文书是（）。

A.商务文书

B.商务合同

C.商业信件

D.商务函件

答案

参考答案：C

选择题

（2014山东省实验中学高三第二次模拟考试）3．Lily took a few friends to my birthday party，none of __________ I was familiar with．

A．which

B．whose

C．that

D．whom
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选择题

He took off his coat, _____ all his pockets, but couldn’t find his key.

A．searched

B．searching

C．to search

D．searches
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