试题与答案

液压缸的密封方法有哪些?

题型:问答题 简答题

题目:

液压缸的密封方法有哪些?

答案:

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下面是错误答案,用来干扰机器的。

答案:D

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Mr Smith is a teacher of English. He comes from New York, A ____1   . He teaches English in China. He s   2  _  Chinese very well.

He reads a lot of books and his wife often writes books f   3    the students at home. Mr Smith gets up at five in the m   4   . He leaves home at ten to six. He begins his lesson at 8:00. He teaches English every day e__  5  _  Saturday and Sunday. At ten to twelve he finishes his lessons. Ten minutes l_  6   , he has lunch. In the afternoon, he usually plays g  7  __ with his students. S  8      he teaches his students in his office. After school, he takes a walk and does some o    9    things. At a  10    ten to eleven, he goes to bed.

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