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【简答题】
冲压的基本工序包括1___和2___其中1又分为___、___、___等;2又分为___、___、___等。
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反馈参考答案：
举一反三
【单选题】What do the remarks of Tremaine mean at the end of the passage?
A.
The overturn of the present study fruit may betoken new breakthroughs.
B.
If we want to achieve something original, we must throw away the old.
C.
The fruits available in each field couldn't hold water all the way.
D.
It is always exciting experience to discard the old and obtain the new.
【单选题】The actors working at the museum explain what they do to the visitors. 查看材料
A.
Right
B.
Wrong
C.
Not mentioned
【单选题】下列说法正确的是( )。
A.
焊丝在气焊时起填充金属的作用
B.
低碳钢气焊时必须用熔剂
C.
有色金属、铸铁以及不锈钢气焊时不必采用气焊熔剂
D.
气焊熔剂在焊接时也起到填充金属的作用
【简答题】Nick Campbell sat at the side of the road and wondered what to do next. He looked at the second-hand Harley Davidson he'd bought from a back-street garage back home in Miami at the beginning of his tr...
【简答题】Nick Campbell sat at the side of the road and wondered what to do next. He looked at the second-hand Harley Davidson he’d bought from a back-street garage back home in Miami at the beginning of his tr...
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