2. 外语
  3. According to the passage, the maximum intensity of sound coming from commercials______. One of the reasons why commercials are

According to the passage, the maximum intensity of sound coming from commercials______. One of the reasons why commercials are

admin2009-06-24  68
问题 According to the passage, the maximum intensity of sound coming from commercials______.
One of the reasons why commercials are able to attract viewer attention is that______.
选项 A、the human voices in commercials have more auditory impact
B、people like cheerful songs that change dramatically in sound quality
C、high-frequency sounds are used to mask sounds that drown out the primary message
D、they possess sound qualities that make the viewer feel that something unusual is happening
答案D
解析
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