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【单选题】
G90 X52 Z-100 F0.2;中X52的含义是()A.
车削100长的圆锥
B.
车削100长的圆柱
C.
车削直径为52MM的圆柱
D.
车削大端直径为52mm的圆锥
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知识点：
皮皮学刷刷变学霸
举一反三
【简答题】EPO是()的缩写,它的主要作用是()。
【单选题】We used to see each other ______,but I haven’t heard from him since last year.
A.
especially
B.
particularly
C.
regularly
D.
approximately
【单选题】We used to see each other _____, but haven’t heard from him since last year.
A.
especially
B.
regularly
C.
particularly
D.
approximately
【单选题】We used to see each other ▲ but I haven’t heard from him since last year.
A.
especially
B.
regularly
C.
particularly
D.
finally
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