PLC的对外功能，主要是通过各种（）与外界联系的。_爱下问搜题

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问题填空题

PLC的对外功能，主要是通过各种（）与外界联系的。

答案

参考答案：I/O接口模块

填空题

看图选词填空。

carpenter, police officer, tall, young, bus driver,
brother, student, mother, sister, father

1.	This is my ___________. He is 42 years old. He is a ___________.
2.	This is my ___________. She's 40 years old. She is a ___________.
3.	This is my ___________. He is 20 years old. He is ___________. He is a ___________.
4.	This is my ___________. She is 6 years old. She is ___________. She is a ___________.

单项选择题

生产过程中空间组织的最基本原则是（）

A.有利于安全生产保证

B.有利于企业内部各项生产活动的正常进行

C.有利于合理利用空间

D.有利于减少运输空间