来自黎时才的问题
【1、19.CharlesBabbageisgenerallyconsidered______thefirstcomputers.A.toinventB.inventingC.tohaveinventedD.havinginvented请问这题为什么选C而不选A呢】
1、19.CharlesBabbageisgenerallyconsidered______thefirstcomputers.
A.toinvent
B.inventing
C.tohaveinvented
D.havinginvented
请问这题为什么选C而不选A呢
