A-A+
Charles Babbage is generally considered ______
问题详情
Charles Babbage is generally considered ______ the first computers.
A．to invent
B．inventing
C．to have invented
D．having invented
参考答案
正确答案：C
解析：此题考查的是非谓语动词中不定式的用法be considered/said/believed to do ，意为“据认为/据说/据相信做……”，而后面的动作若已经发生，则用完成时表示，故选to have invented。
