单项选择题
A.pthread_init B.pthread_attr_create C.pthread_attr_destroy D.pthread_attr_init
A.pthread_self B.pthread_pause C.pthread_join D.pthread_exit
A.exit B.pthread_quit C.pthread_exit D.return
A.shminit B.seminit C.semget D.shmget
A.msgget B.msginit C.msgcreate D.msg
A.向进程号为pid值的进程发送信号 B.向进程组号为pid绝对值的进程发送信号 C.向与发送信号的进程有相同进程组号的进程发送信号 D.未定义