题目内容

断开延时定时器指令（TOF）输入端（IN）接通时，定时器位立即置为（），并把当前值设为（）。

查看答案

搜索结果不匹配？点我反馈

更多问题

接通延时定时器用于单一时间间隔的定时（）

A. 对
B. 错

[音频]There are _______ people in Li Min’s family.

A. four
B. five
C. six

Her grandmother is a _______.

A. retired doctor
B. retired nurse
C. housewife

Her father is a teacher in a _______.

A. high school
B. middle school
C. college