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【判断题】
为了减小吸油阻力，减小径向力，一般液压泵的吸油口比出油口的尺寸大；而液压马达低压腔的压力稍高于大气压力，所以没有进出油尺寸大小要求。A.
正确
B.
错误
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举一反三
【单选题】The news is ____________, We are all ____________ at it. [ ]
A.
surprising；surprising
B.
surprised；surprised
C.
surprised；surprising
D.
surprising；surprised
【单选题】Which of the following statements about theoretical capacity is BEST?
A.
Theoretical capacity allows adjustments for preventive maintenance.
B.
Running a factory at this level for a short time is often better than permanently raising resource levels.
C.
Theoretical capacity levels are usually lower than rated capacity levels.
D.
Theoretical capacity levels take into account that machines occasionally break and that workers occasionally call in sick.
【单选题】All of us are _____ at the _____ result.
A.
surprising; surprised
B.
surprised; surprising
C.
surprising; surprising
D.
surprised; surprised
【简答题】Who do not probably notice the beauty of theoretical physics?
【单选题】Don't be so _________. For me, his failure is not _________. [ ]
A.
surprising; surprising
B.
surprised; surprised
C.
surprised; surprising
D.
surprising; surprised
【简答题】What are the main features and theoretical base of the audiolingual method?
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