This monument was built in honor of the scientist who was believed the first telephone. A

发布时间：2020-08-16 08:31:21


This monument was built in honor of the scientist who was believed      the first telephone.
A. to invent
B. to have been invented
C. to have invented
D. having been invented

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A. to invent
B. to have been invented
(答案→)C. to have invented
D. having been invented
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