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【单选题】
位置控制就是利用生产机械运动部件上的( )与位置开关碰撞来控制电动机的工作状态。A.
档铁
B.
C.
按钮
D.
超声波
手机使用
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反馈参考答案：
举一反三
【单选题】I have no more letters ____ , thank you .
A.
to type
B.
typing
C.
to be typed
D.
typed
【简答题】阅读理解。 Letters to the next president Dear Mr. President: I would like to personally thank you for your time and concern for our great country. I would like to take a few minutes to address a few concer...
【单选题】— . Hope is always around you. — Thank you, Miss Gao.
A.
Don’t thank goodness
B.
Don’t be late
C.
Never show off
D.
Never give up
【单选题】I have no more letters ____ , thank you .
A.
to type
B.
to be typed
C.
typing
D.
typed
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