题目内容

Kernel is the core of the operating system that controls all the tasks of the system.

A. 对
B. 错

查看答案

搜索结果不匹配？点我反馈

更多问题

The operating system will allocate the memory to a process when the process requests it.

A. 对
B. 错

The operating system is responsible for device communication.

A. 对
B. 错

以下哪一项不是PLC的优点( )

A. 编程简单
B. 可靠性好
C. 通用性差
D. 功能强

S7-1200PLC采用自然冷却方式要确保其安装位置的上、下部分与临近设备之间至少留出( )mm的空间。

A. 15
B. 25
C. 35
D. 45