Whenever a major airplane accident occurs, there is a dramatic increase in the number of airplane mishaps reported, a phenomenon that may last for as long as a few months after the accident. airline officials assert that the airplane accidents focuses media attention on number of reported accidents is caused by an increase in the number of news sources covering airline accidents, not by an increase in the number fo acccidents.
问削弱airline officials?
B airline accidents tend to occur far more often during certain peak travel months.
D Airline accidents receive coverage by news sources only when the news sources find it advantageous to do so
为什么答案选B,D怎么不对?
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