◎ 题干
听下面一段对话,回答1至3小题.
1.What is the main idea of the speech?
A. Hotlines have become common in China.
B. His viewpoint on hotlines.
C. Hotlines are good ideas.
2. Why does the host have to explain and answer?
A. Because the host knows little about the topic.
B. Because the host wants to express his hope.  
C. Because of the caller's ignorance.
3.  What does the speaker suggest?  
A. The caller who doesn't know what is going on is not allowed to take part in.  
B. The host should pay no attention to the caller's question.
C. Let the host know it is a waste of time.
◎ 答案
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◎ 解析
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◎ 知识点
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