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【判断题】
40Cr是一种合金调,加入Cr元素,一个作用是强化体,另一个作用是显著提高淬透性,其最终热处理是调质处理。( )A.
正确
B.
错误
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举一反三
【单选题】The couple had no sooner got to the station _____ the coach left. (2009)
A.
when
B.
as
C.
until
D.
than
【单选题】Important his discovery was, it was regarded as a matter of no account in his time.
A.
when
B.
until
C.
as
D.
although
【单选题】After a serious illness, he finally _______ how important his health is.
A.
meant
B.
realized
C.
added
D.
impressed
【简答题】A．His standpoint in important issues. B．His effort to get equal rights for women. C．His ability to create job opportunities. D．His performance at work.
【简答题】A．His standpoint in important issues. B．His effort to get equal rights for women. C．His ability to create job opportunities. D．His performance at work.
【简答题】函数 在 内满足拉格朗日中值定理的点是 ____。
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