1、19.Charles Babbage is generally considered ______ the firs

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/05/23 18:01:28

1、19.Charles Babbage is generally considered ______ the first computers.
A.to invent
B.inventing
C.to have invented
D.having invented
请问这题为什么选C而不选A呢

e considered to do sth 被认为去做某事,这件事是还没做的,不定式to do有将来的含义
而be considered to have done 被认为做过某事,to have done是不定式的完成式,表示这事情已经做过了,发生在过去

1、19.Charles Babbage is generally considered ______ the firs Charles Babbage is generally considered ______ the first com Charles Babbage is generally considered ____ the first compu Charles Babbage is generally considered __ the first compute 1.Charles Babbage is generally considered ___ the first comp 请问,Charles babbage is generally considered ____ the first co Charles Babbage is generally considered to have invented the consider用法Charles Babbage is considered ______ the first com 英语翻译40.Charles Babbage is generally considered______the firs Charles Babbage is generally considered _____the first compu As far as I know ,Charles Babbage is generally considered __ Charles Baggage is generally considered ___ the first comput