A.打開(kāi)對(duì)象 B.選定對(duì)象 C.打開(kāi)快捷菜單 D.移動(dòng)對(duì)象
A.電子郵件B.遠(yuǎn)程登錄C.萬(wàn)維網(wǎng)D.文件傳輸
A.doC. B.xls. C.ppt. D.txt.