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【判断题】
风的日变化规律表现为,夜间大A.
正确
B.
错误
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举一反三
【单选题】Task 4 Start your day off right with our continental breakfast free. Not only do we offer a generous variety of traditional continental foods, but also a couple of hot items each day. Too busy to sit ...
A.
All the items provided are hot food.
B.
Free continental breakfast is provided.
C.
Chinese foods are also available.
D.
Breakfast can be taken away at weekends.
【单选题】Enclosed please find our quotations which open for 15 days only.
A.
place
B.
leave
C.
remain
D.
have
【单选题】We didn’t provide _____ such a sudden and large-scale enemy attack.
A.
for
B.
with
C.
to
D.
up
【简答题】什么是数控技术(Numerical Control NC)?
【判断题】To meet the demand of the market, numerical control (NC) technology appeared in early 1960s.
A.
正确
B.
错误
【简答题】A computer numerical control (CNC) machine is a NC machine with an on-board computer, which is called the machine control unit (MCU).
【简答题】数控(Numerical Control,NC)的定义是 。
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