— Attention, please. The plane has to be _____ because of the    heavy rain.

— Oh, bad luck! We have to wait now.

A．put on

B．put off

C．put up

D．put away

能将高级语言编写的源程序转换为目标程序的软件是

A．汇编程序

B．编辑程序

C．解释程序

D．编译程序