题目内容

12.PLC输入输出接口要有良好的抗干扰能力和满足工业现场各类信号的匹配要求。

A. 对
B. 错

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M0-M15中,M0数值为1,其它都为0,那么,K4M0数值为()

A. 1
B. 2
C. 3
D. 4

We often use a recorder in our English class.

They will show a new film next week.

When did they build the house?

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