Q41.

Marconi’s conception of the radio was as a substitute for the telephone, a tool for private conversation; instead, it is precisely the opposite, a tool for communicating with a large, public audience.

A.   Marconi’s conception of the radio was as a substitute for the telephone, a tool for private conversation; instead, it is

B.   Marconi conceived of the radio as a substitute for the telephone, a tool for private conversation, but which is

C.   Marconi conceived of the radio as a tool for private conversation that could substitute for the telephone; instead, it has become

D.  Marconi conceived of the radio to be a tool for private conversation, a substitute for the telephone, which has become

E.   Marconi conceived of the radio to be a substitute for the telephone, a tool for private conversation, other than what it is,

   Answer: e

一点都不明白

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