奥氏体不锈钢的耐蚀性高于马氏体不锈钢。A、对 B、错
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马氏体不锈钢的焊接性能高于奥氏体不锈钢和铁素体不锈钢。A、对 B、错
A. 对
B. 错
马氏体不锈钢一般都要经过淬火、回火后才能使用。A、对 B、错
A. 对
B. 错
Look, .
A. here the bus comes
B. here is the bus coning
C. here comes the bus
D. here the bus is coming
-Where is Kate?- Look, she is at the school gate.
A. there she is
B. there is she
C. here you are
D. here it is
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