单项选择题

According to the passage, the maximum intensity of sound coming from commercials ______.

A．does not exceed that of programs
B．is greater than that of programs
C．varies over a large range than that of programs,
D．is less that that of programs

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热门试题

单项选择题

In the passage, the author is trying to tell us ______.

A．how TV ads vary vocal sounds to attract attention
B．how the loudness of TV ads is overcome
C．how advertisers control the sounds properties of TV ads
D．how the attention-getting properties of sounds are made use of in TV ads

单项选择题

Many commercials begin with a cheerful song of some kind because ______.

A．pop songs attract viewer attention
B．it can increase their loudness
C．advertisers want to make them sound different from regular programs
D．advertisers want to merge music with commercials