A. automatic data processing
B. automatic programming
C. source coding
D. virtual terminal
E. message identification
F. graph manipulation
G. external attribute
H. tree hierarchy
I. logical flowchart
J. replaceable parameter
K. illegal operation
L. current directory
M. operation panel
N. insert paste
O. backup copy
P. install driver
Q. edit object
R. process simulation ( )虚拟终端 ( )自动编程