Charles Babbage is generally considered ____ the first computer.

Charles Babbage is generally considered ____ the first computer.
A、to invent
B、inventing
C、having invented
D、to have invented
【正确答案】：D
【题目解析】：【考点点击本题考查不定式的完成体。【要点透析】 consider意为“认为”时,其后常接含有名词、形容词或tobe的复合结构;第一台电脑的发明是已经完成的动作,故应用完成体。