-Are you sure you won't come for a drink with us?

-     ,if you insist

A．Not at all

B．It depends

C．All right then

D．I don't care

执行下列命令后，当前打开的数据库文件名是 Number="3" File="File"+Number USE &File

A．File3

B．&File

C．FileNumber

D．File