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【单选题】
TiAlN涂层作为一种新型涂层材料,具有硬度高、氧化温度高、热硬性好、附着力强、摩擦系数小、导热率低等优良特性,可部分或完全替代TiN,尤其适合用于( )切削。A.
低速
B.
高速
C.
中速
D.
等线速度
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【简答题】阅读短文，判断下列句字正（√）误 （×） 。 Tom: Jack, I have a riddle (谜语). Can you guess? Jack: OK, what's it? Tom: Please tell me who he is: He is not my brother, and is not my sister, but he is a child of my parents. ...
【单选题】—Whose picture is better, Jack's or Tom's? —Both of them are good. I think Jack draws ___________ Tom. [ ]
A.
as good as
B.
as well as
C.
better than
D.
worse than
【简答题】According to the passage, ______ contribute to most successful programs in smart companies.
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