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【多选题】
辅助蒸汽的作用是在哪些情况下为机组提供蒸汽()
A.
机组启动时
B.
机组低负荷时
C.
机组并网时
D.
机组停机时
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举一反三
【单选题】餐厅服务员应当在客人一进餐厅时就及时安排好他们的座位以满足客人的( )心理。
A.
求食物合口味
B.
求快
C.
求尊重
D.
求干净卫生
【简答题】Indian and Pakistan have fought three wars since 1947, two of them over Kashmir.
【单选题】天体间的引潮力,与天体间距离的 几次方 成反比?
A.
1 次方
B.
2 次方
C.
3 次方
【单选题】I have ________ foreign stamps.  _________ of them are from the USA. A. hundred; Three hundreds
B.
hundred; Three hundred
C.
hundreds of; Three hundred
D.
hundreds; Three hundreds
【单选题】天体受到的引潮力与外部天体距离的( )
A.
2次方成正比
B.
2次方成反比
C.
3次方成正比
D.
3次方成反比
【单选题】Tim has failed three courses this semester, so he will have to ______ them next semester.
A.
remake
B.
repeat
C.
reapply
D.
revise
【单选题】引潮力与距离的( )成反比。
A.
平方
B.
立方
C.
三次方
D.
四次方
【单选题】Have you heard of it? Firefighters rushed into a burning house, three of them unfortunately ___
A.
138. Have you heard of it? Firefighters rushed into a burning house, three of them unfortunately _____ in and ______ their lives. A.caught; losing
B.
catching; lost
C.
caught; lost
D.
catching; losing
【单选题】The aim of the first type of holidaymaker is ______.
A.
to enjoy good food
B.
to enjoy themselves
C.
to have sunbathing
D.
to swim in the sea
【单选题】All the classmates _____ in that match.
A.
enjoy themselves
B.
enjoy ourselves
C.
enjoyed themselves
D.
enjoyed yourselves
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