题目程序段G21 G95 G01 X-20 Y-10 F0.2中F0.2的含义是A. 0.2m/revB. 0.2mm/minC. 0.2mm/revD. 0.2mm/s程序段G21 G95 G01 X-20 Y-10 F0.2中F0.2的含义是A. 0.2m/revB. 0.2mm/minC. 0.2mm/revD. 0.2mm/s题目解答答案C. 0.2mm/rev