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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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【单选题】I have little time to watch TV because I have ____ homework to do . [ ]
A.
. much too
B.
. too much C. many too D. too many
【单选题】The flower is dead I ______ it too much water.
A.
must have given
B.
would have given
C.
must give
D.
should have given
【简答题】Recently, the fact that more and more students have spent too much time playing computer s has aroused great concern. Though the computer and the Internet have brought us great convenience and ple...
【单选题】在Excel中公式= AVERAGE( C3 : C6 )等价于公式()
A.
= c3 + c4 + c5 + c6 / 4
B.
= (c3 + c4 + c5 + c6) / 4
C.
都对
D.
都不对
【单选题】公式:=AVERAGE(C3:C6)等价于公式( )
A.
=C3+C4+C5+C6
B.
=(C3+C4+C5+C6)/4
C.
=C3+C4+C5+C6/4
D.
=C3*C4*C5*C6
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