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【单选题】
数控车床循环程序:N20 G90 G94 X-1 Z0.2 F0.2;N30 Z0;其加工内容是( )。A.
车端面,Z轴方向的切削余量为0.2
B.
车端面,Z轴方向的切削余量不确定
C.
圆面,X轴方向的切削余量为-1
D.
圆面,X轴方向的切削余量为0.2
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皮皮学刷刷变学霸
举一反三
【单选题】It’s probably not a good idea to start in your first week in a new job.
A.
turning out
B.
making waves
C.
plugging in
D.
fixing up
【单选题】Pendulums are used to regulate motion in some scientific equipments.
A.
laboratories
B.
measurements
C.
apparatuses
D.
experiments
【简答题】《大江东去》创作于( )留德之时。
【单选题】Texture measurement by instruments will give a value in degree CelciusThis scale of measurement is normally used for all readings and temperature values _____ dealing with theoretical calculations inv...
A.
in addition to
B.
in addition that
C.
except that
D.
except when
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