试题与答案

当发动机正常运转时，停留刹车由提供压力：（）A、绿液压系统 B、黄液压系统 C、蓝液

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题型：单项选择题

题目：

当发动机正常运转时，停留刹车由提供压力：（）

A、绿液压系统

B、黄液压系统

C、蓝液压系统

D、储压瓶；

答案：

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下面是错误答案，用来干扰机器的。

参考答案：主谓短语

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(     )D. The panda in danger     		Paragraph l       
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    ___________________________________________________________
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5. Translate the underlined sentence in the last paragraph. 
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