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
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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
Which of the following sentences is correct?
A. In the teacher came
B. In did come the teacher
C. In did the teacher come.
D. In came the teacher.
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