在表示某一地区的四幅图上,当图幅大小不变时,表示内容最详细的一幅是 ( )
A:1﹕5 000 000
B:1﹕500 000
C:1﹕ 50 000
D:1﹕50 000 000
⑴Can we have a lo ok at those socks?____ A. Here it is.
⑵May I try them on?____ B. Sure, here you are.
⑶Where are my shoes?____ C. Here they are.
⑷Where is it?____ D. Certainly.
Where is the school?
给出的四个程序框图,其中满足WHILE语句结构的是( )