题目内容：
[设计题,10分] 设计三相异步电动机正、反转控制线路。要求如下： （1）电路具有正、反转互锁功能； （2）从正转→反转，或从反转→正转时，可直接转换； 设计要求： （1）给出I/O分配； （2）绘出PLC梯形图，并写出对应的指令表
参考答案：
选择题：[设计题,10分] 设计三相异步电动机正、反转控制线路。要求如下： （1）电路具有正、反转互
- 题目分类：河南理工大学—现代电气控制技术与PIC
- 题目类型：选择题
- 查看权限：VIP
He talked as if he ________ the incident.A.had wit
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Mr. Smith had an unusual _________: He was first a
Mr. Smith had an unusual _________: He was first an office clerk, then a sailor,
[单选题,9分]Jimmy could hardly Mary bec
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[多选题,9分] ________, she won the race.A.FinallyB.In
[多选题,9分] ________, she won the race.A.FinallyB.In the endC.At lastD.At the end