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【简答题】
机床坐标系的原点也被称为( )或( )。这个原点在机床一经设计和制造调整后便被确定下来,机床原点与( )车床卡盘的相对位置是固定的。数控车床的机床原点一般设在( )上。
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举一反三
【单选题】Would you please tell me______ with Peter? He looks unhappy.
A.
what's the matter
B.
what wrong is
C.
the wrong is what
D.
what wrong it is
【单选题】— Would you please tell us _____? —In half an hour, I think.
A.
when will he come back
B.
when he will come back
C.
when he came back
【单选题】Would you please give him this message the moment he ______? [ ]
A.
arrives
B.
arrived
C.
will arrive
D.
is being arrived
【单选题】---Would you please give him the paper the moment he ____? --- No problem.
A.
arrives
B.
appearing
C.
came
D.
reaches
【简答题】幼儿期是个性初步形成的时期，具体表现在
【单选题】—Would you please give him the paper the moment he ( )? —No problem.
A.
arrives
B.
will arrive
C.
arrived
D.
is arriving
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