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【判断题】
数控机床伺服系统将数控装置的脉冲信号转换成和机床移动部件的运动A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】We make sure we’re always well stocked up with candles, just ________.
A.
in case
B.
for certain
C.
in practice
D.
for use
【单选题】We are all proud of the great changes in Beijing. We're sure Beijing will be even ________ tomorrow. [ ]
A.
good
B.
better
C.
best
D.
the best
【简答题】请简述一下如何选购打印机。
【单选题】We‘re not sure if it ________ tomorrow. If it ________, we won't climb the South Hill. [ ]
A.
will snow; snows
B.
will snow; will snow
C.
snows; snows
D.
snows; will snow
【简答题】简述一下如何选购打印机
【单选题】It's quite a time _____ Liu Xiang was injured in the foot, but we're sure it won't be long _____ he returns to the track. [ ]
A.
after; when
B.
before; since
C.
that; when
D.
since; before
【简答题】请简述一下如何选购打印机。
【单选题】We’re sure to win the entrance examination ___________ next year.
A.
held
B.
being held
C.
to be held
D.
having been held
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