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【判断题】
摆动缸是一种将油液的压力能转变为叶片往复摆动的机械能的液压执行元件,又称摆动式液压马达。A.
正确
B.
错误
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【简答题】阅读下面短文，从方框中找出每段的中心句，与每一段落匹配起来。 Maybe you think of yourself as a good friend, but are you really? If you’re not sure, it’s time to think about what makes a true friend. 小题1:A good friend is busy but st...
【简答题】用方框里的单词填空 Its black too are from school likes old their teacher Jim and John are good friends. They are 小题1: the U.S.A. But now they 小题2: in China. They are in the same 小题3: . They like the...
【单选题】The best title for this passage is______.
A.
Such a Clever Friend
B.
Mr Richards and His Friend
C.
Money Is Important
D.
Such Good Usage of Money
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