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【单选题】
共析钢水冷的转变产物是_______。A.
体
B.
珠光体
C.
马氏体+残余奥氏体
D.
托氏体+马氏体
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皮皮学刷刷变学霸
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【单选题】_________ I heard that he was in hospital, I went over to see him.
A.
Since
B.
How
C.
But
D.
As soon as
【单选题】He made another wonderful discovery, __________ of great importance to science.A．I think which i
A.
16. He made another wonderful discovery, __________ of great importance to science. A．I think which is
B.
which I think it is
C.
which I think it
D.
which I think is
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