【单选题】Typically, the modulator and demodulator sections of the converter are combined into a twoway data transmitter-receiver, commonly called a data modem or data set.
【简答题】请认真阅读下面对话,并根据各题所给首字母的提示,写出一个英语单词的完整、正确形式,使对话通顺。 M=Mary T=Tom M: Hi, I'm going door to door tonight to tell people about the Student Action Union. T: I think I read something in the (76)n last week. ...