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【简答题】
如图车削手工编程的整个过程:车外圆时,主轴转速确定为S31=630r/min,进给速度选择为F15。切槽时,主轴转速度为S23=315r/min,进给速度选择为F10。T10表示1号刀车外圆,T22表示2号切槽刀。换A。选用具有直线——圆弧插补功能的数控车床加工该零件,请编写零件加工程序。
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举一反三
【单选题】He got me ______ his parents when he joined the army.
A.
look after
B.
to look after
C.
look on
D.
to look on
【单选题】听力原文：W: Look at that boy. He's in the tree, isn't he? M: Yes, I think so. How erous ! W: We had better tell him to get down. M: Quite right. But be sure not to frighten him. Who's in the tree?
A.
A man.
B.
A boy.
C.
A woman.
【单选题】He decided to ______ the matter himself.
A.
look through
B.
look into
C.
look after
D.
look for
【简答题】写出下列元器件的标称值 1 、 6 Ω± 10% 2 、棕黑棕银 3 、棕绿黑棕棕
【单选题】I’m surprised to see that he has an_____look on his face.
A.
absent
B.
absolute
C.
academic
D.
absorbent
【单选题】Why did tom look worried according to the conversation?
A.
Because he had an accident this morning in which a girl was badly hurt.
B.
Beeause he couldn't ride his bike to school this morning.
C.
Because the girl he loved was badly hurt by him this morning.
相关题目：
【单选题】He decided to ______ the matter himself.
A.
look through
B.
look into
C.
look after
D.
look for