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【单选题】
影响切削层公称厚度(切削厚度)的主要围( )。A.
切削速度和进给量
B.
背吃刀量（切削深度）和主偏角
C.
进给量和主偏角
D.
切削速度和背吃刀量（切削深度）
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皮皮学刷刷变学霸
举一反三
【简答题】能累计输入脉冲个数的时序逻辑电路是( )。
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【单选题】My parents are both fine. _____ yours? [ ]
A.
Why not
B.
Why don't
C.
How about
D.
How often
【简答题】My parents are both ___________ teachers.
【单选题】My parents are both sure that I successful in the future if I keep working hard. [ ]
A.
am
B.
was
C.
be
D.
will be
【简答题】Born as the only child in the family, I am the “king” of the family. My parents are both businessmen and they come home every two weeks. Because they don’t spend much time with me, they always feel gu...