职称英语考试

【单选题】第二篇
This research deals with what’s called directed communication,when the communicator,or sender,focuses the message for a specific audience.One example is the way morns speak to their babies.Mothers around the world use the same sort of high-pitched sing-song chatter(喋喋不休),and the babies respond best to those sounds.Songbirds are one of the only other species known to learn their communication,in this case their songs. Which of the following can best reflect the theme of the passageA．Chirping away.
B．Zebra finches and their life.
C．Birdsongs as communication.
D．Frequencies of birdsongs.

网考网参考答案：C
网考网解析：
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