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【单选题】
下列有关弯曲工艺参数表述准确的是 。A.
弯曲工艺参数中的ρ表示的是应变中性层；
B.
通常弯曲件的极限弯曲程度用相对弯曲半径r/t来衡量;
C.
当弯曲件的弯曲半径r＞最小相对弯曲半径rmin/t时，则工件易于弯曲成型；
D.
影响最小相对弯曲半径的因素只与材料本身的力学性能有关，与弯曲工艺条件无关。
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反馈参考答案：
举一反三
【单选题】If I ten million dollars, I travel around the world.
A.
have ; will
B.
had ; will
C.
had ; will
D.
had ; would
【简答题】16【单选题】呆小症是因为哪种激素分泌不足
【单选题】If I _____ one million dollars, I________ travel around the world with my parents.
A.
have; will
B.
had; will
C.
had; will
D.
had; would
【单选题】— I borrowed 10 dollars from Cathy, but she insisted that I had borrowed 15 dollars from her. — I _____ you the money. Why didn't you ask me? [ ]
A.
must lend
B.
could have lent
C.
would lend
D.
should have lent
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