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问题详情

PLC的RS485专用通讯板的通讯距离是( )

A、1300M

B、200M

C、500M

D、50M

时间：2021-09-01 17:03 关键词：青书学堂平顶山学院电气工程及其自动化可编程控制器桂林理工大学机电一体化技术高起专可编程控制器原理及应用

答案解析

D

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