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Match the column questions

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Thunderstorms progress three definite stages-cumulus, mature and ______.

A. dispersing
B. dissipating
C. dispelling
D. distracting

CAT cannot always be ___________ so there is no warning.

A. captured
B. foreseen
C. directed
D. detoured

执行程序 G90 G01 G44 Z-50 H01 F100 （H01补偿值-2.00mm）后，若工件坐标系Z轴原点在工件表面则切削深度是（）。

A. 48mm
B. 52mm
C. 50mm
D. 都不对

设置刀具长度补偿的操作界面是：

A. PROG
B. OFFSET SETTING
C. SYSTEM
D. MESSAGE