当用户在终端窗口通过输入命令来控制计算机运行时,使用的是操作系统的哪一种接口?
A.命令行
B.系统调用
C.函数库
D.应用编程接口
第3题
A.This is in main program I am in child process I am in parent process
B.This is in main program I am in child process
C.This is in main program I am in parent process
D.This is in main program I am in child process This is in main program I am in parent process
第4题
A.pthread_create()
B.pthread_exit()
C.pthread_yield()
D.pthread_join()
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