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【单选题】
《混凝土结构设计规范》规定，预应力混凝土结构的混凝土强度等级不宜低于（）A.
C40
B.
C30
C.
C35
D.
C50
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举一反三
【单选题】The poor man was cheated _____ the money he had earned on his way back home. [ ]
A.
into
B.
out
C.
out of
D.
on
【单选题】On his way back home, he an interesting story on the bus.
A.
picked out
B.
picked off
C.
picked up
D.
picked on
【单选题】Where did the man see Mr. Wang?
A.
He saw Mr. Wang on his way back home.
B.
He saw Mr. Wang in the shop.
C.
He saw Mr. Wang on his way going home.
【简答题】On his way back home, he found his wallet ______ (miss).
【单选题】( )'A new idea began to ____from his mind when he was on his way back home.
A.
emerge
B.
output
C.
starve
D.
tend
【简答题】从压缩机中排出的制冷剂蒸汽在冷凝器中通过冷却介质的冷却而成___,放出大量的液化潜热。
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