,Can you tell me        over there ?

A． what are you doing ?

B． what to do it

C． what they are doing

D． what they doing

打开某网站主页http://localhost/school/indelx.htm，浏览“高手速成”页面，查找“彩色摄影拍摄要点提示”页面内容，并将它以文本文件的格式保存到考生文件夹下，命名为“彩色摄影拍摄要点提示.txt”。