题目内容：
Itmighttake30to40yearsforcomputernewspaperstoreplacetraditionalnewspapers,be-cause__________．
A．itistechnologicallyimpossiblenow B．computernewspapersaretooexpensive
C．thereisstrongresistancefromboththegeneralpopulationandprofessionaljournalists
D．traditionalnewspapersareeasytoread
参考答案：
答案解析：