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【单选题】
溢流阀工作时保持( )压力不变。A.
进口
B.
出口
C.
进出口
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【简答题】我国证券交易所是按公司制方式组成。( )
【单选题】What does the writer say about the classified advertisements that used to be put in the papers?
A.
They used to be voluntary.
B.
They used to use display type.
C.
They were all of the same size.
D.
They were more formal.
【单选题】What does the writer say about the classified advertisements that used to be put in the papers?
A.
They used to be voluntary.
B.
They used to use display type.
C.
They were all the same size.
D.
They were more formal.
【单选题】The modern city is quite different from what it ____ some ways. A . was used to be in B . used to by C . used to be in D...
A.
． was used to be in
B.
． used to by
C.
． used to be in
D.
． was used to being in
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