PLC控制程序,由()部分构成。
A、无限
B、二
C、三
D、一
参考答案:C
Apple has given in to intense pressure from Chinese state media about its customer service practices, ________ to consumers in its second-largest market.
A.apologizing
B.apologize
C.having apologized
D.to apologize
GOO是指令刀具以()移动方式,从当前位置运动并定位于目标位置的指令。
A.点动
B.走刀
C.快速
D.标准