标题: og12 106 [打印本页] 作者: ileisure 时间: 2011-11-10 22:12 标题: og12 106 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. ?? (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,