【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】十九大报告指出,新时代中国特色大国外交要推动构建( ),推动构建人类命运共同体。
【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)