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【多选题】
离心泵的主要部件有_______、__________ 、__________、______________、轴封箱和密封装置。A.
吸入室
B.
叶轮
C.
涡壳
D.
轴
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【简答题】A．John's house was burned down. B．John finally got rid of his shoes. C．John lost his intelt dog. D．John got into trouble with his neighbor.
【多选题】通货紧缩的促进论者认为,适度的通货紧缩有利于经济的增长。理由是( )
A.
将促进长期利率下降
B.
经济扩张的时间延长、维持经济稳定
C.
价格水平的下降与技术进步、经济增长可相互促进
D.
可提高人们的购买力
E.
低物价可吸引国外投资者
【单选题】—Is John coming by train? —He should, but he ______not. He likes driving his car.
A.
must
B.
can
C.
need
D.
may
【简答题】To this happening again, John suggested that the source of all the water supplies . A, stop, be examined B, keep, should be examined C, pr, examined D, stop,...
【简答题】John ( ) stop his car in time, so he hit the girl.
【多选题】通货紧缩的促进论者认为，适度的通货紧缩有利于经济的增长。其理由是( )。
A.
将促使长期利率下降
B.
经济扩张的时间延长维持经济稳定
C.
价格水平的下降与技术进步、经济增长可相互促进
D.
可提高人们的购买力
E.
低物价可吸引国外投资者
【单选题】— Is John coming by train? — He should, but he _____ not. He likes driving his car. [ ]
A.
must
B.
can
C.
may
D.
need
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