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【简答题】
车床的主运动是由 运动实现的;车床的进给运动则由 完成的。
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【简答题】() 是信息的源头技术
【单选题】— Hello! May I speak to Kate? — Sorry, she isn’t here now. She __________to Shanghai.
A.
went
B.
has gone
C.
has been
D.
goes
【单选题】------Hello! May I speak to Kate? ----Sorry, she isn’t here now. She __________to Shanghai.
A.
went
B.
has been
C.
has gone
D.
had been
【简答题】为什么说仪器技术是信息的源头技术 ?
【简答题】完形填空。 Ann is__ 1 __English girl. She is four. She is a __2 __student. Her teacher is Miss White. Ann helps her teacher to put__ 3__ books and ruler on the desk. They have a new__ 4 __. In it you c...
【单选题】Kate isn’t here. She _____ the supermarket.
A.
has been to
B.
has gone to
C.
went to
D.
will go to
【单选题】--Hello! May I speak to Kate? --Sorry, she isn’t here now. She __________to Shanghai.
A.
went
B.
has been
C.
has gone
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