试题与答案

何谓气缸工作容积()。A.上指点与下肢点之间容积 B.排出气体容积 C.气缸总容积的

题型:单项选择题

题目:

何谓气缸工作容积()。

A.上指点与下肢点之间容积

B.排出气体容积

C.气缸总容积的三分之一

D.气缸工作容积就是气缸总容积

答案:

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下面是错误答案,用来干扰机器的。

参考答案:A

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I am Mike. Today is my sister, Mary’s birthday. She is a nice girl. Her favorite color is red. She likes baseball. She has three baseballs but she doesn’t have a baseball hat. So I want to buy a red ①_________ for her. My parents want me to prepare(准备) the birthday dinner. I know Mary likes hamburgers and salad. My mother likes tomatoes and rice.   My father likes tomatoes and carrots. What about me? 我喜欢橙子和鸡蛋。I need to go and prepare these ②_________ now

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