单项选择题
A.0 B.1 C.2 D.4
A.192.168.2.0, 255.255.255.128, 192.168.1.1 B.192.168.2.0, 255.255.255.0, 192.168.1.1 C.192.168.2.0, 255.255.255.128, 192.168.1.2 D.192.168.2.0, 255.255.255.0, 192.168.1.2
A.300 B.500 C.1200 D.1400
A.进程P的代码段 B.进程P中打开的文件 C.进程P的全局变量 D.进程P中某线程的栈指针
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