A、It reflects the audience reaction to their programs. B、It has some close connection with the price for advertising time. C、It

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问题  

选项 A、It reflects the audience reaction to their programs.
B、It has some close connection with the price for advertising time.
C、It keeps a record of what the audience have watched.
D、It helps to improve the quality of the programs.

答案B

解析
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