【判断题】【消耗次数：1】
系统调用的调用过程是通过用户程序，运行在用户态，而被调用的过程是运行在核心态下。（ ）
①
正确
②
错误
参考答案：
复制
纠错
相关题目
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在调用过程时，下述说明中正确的是（ ）。
①
只能使用Call语句调用Sub过程
②
调用Sub过程时，实际参数必须用括号括起来
③
Function过程也可以使用Call语句调用
④
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访管指令
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屏蔽中断指令
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