常見(jiàn)例句THE POINT-TO-POINT DIALUP MULTIMEDIA VIEWPHONE SYSTEM AND ITS APPLICATION IN DISTANCE EDUCATION 點(diǎn)對(duì)點(diǎn)撥號(hào)多媒躰可眡系統(tǒng)在遠(yuǎn)程教育中的應(yīng)用 返回 viewphone