A.pressed
B.released
C.clicked
D.enter

A.gcc -o ex ex.c gtk-config -cflags --libs
B.gcc -o ex ex.c ’gtk-config -cflags -libs’
C.gcc -o ex ex.c ’gtk-config -cflags -libs
D.gcc -o ex ex.c "gtk-config -cflags -libs"

A.gtk_init
B.gtk_windows_new
C.gtk_widget_show
D.gtk_main

A.Xt
B.Motif
C.Openlook
D.Qt

A.数据库
B.表格
C.列
D.值

A.，
B.：
C.；
D..

A.send
B.sendto
C.recv
D.recvfrom

A.socket
B.getsockname
C.getpeername
D.getsocket

A.pthread_init
B.pthread_attr_create
C.pthread_attr_destroy
D.pthread_attr_init

A.pthread_mutex_init
B.pthread_mutex_create
C.pthread_mutex_begin
D.pthread_mutex_lock

A.pthread_self
B.pthread_pause
C.pthread_join
D.pthread_exit