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【判断题】
在机床接通电源后，通常都要做操作，使刀具或工作台退离到机床参考点。( )A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】to be the best one in the group, she had an opportunity to enter for the final competition.
A.
Judging
B.
To Judge
C.
Having judged
D.
Judged
【单选题】The group of dancers had rehearsed the dance until their movements were absolutely _________.
A.
simultaneous
B.
sensitive
C.
singular
D.
figurative
【单选题】We had an anxious couple of weeks, ____ for the results of the experiment.
A.
wait
B.
to be waiting
C.
waited
D.
waiting
【简答题】The control group patients regretted not having had stem cell injections.
【单选题】--1 missed the early bus and I had to______ the next one on such a cold morning. --Bad luck !
A.
wait for
B.
look up
C.
care for O. put up
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