题目内容

传输差错的主要原因是哪些?差错类型有哪两种?都有什么特点?

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The scavenging air ports are located at () that they are just exposed by the upper edge of the piston when the piston is in the bottom dead center position.

A. so a height
B. such a height
C. so high
D. such high

宪法性法律。

税收政策对企业财务有哪些影响?

日食只能发生在(),即农历的初一

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