【单选题】One of the reasons why commercials are able to attract viewers' attention is that______.
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 viewers feel that something unusual is happening
【单选题】当设置文本框的ScrollBars=Both 而文本框确没有显示出滚动条,原因是()。
【单选题】( )被确定为第三代移动通信系统(IMT-2000)的信道编码方案之一。
【单选题】One of the reasons why commercials are able to attract viewer attention is that______
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
【简答题】听力原文: I think it is the differences between East and West that attract one to the other. Only by exchanges can mutual understanding be improved. (83)
【单选题】企业认为只要是技术最佳的产品就是最好的产品,这是一种( )观念。