【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。
【简答题】A.黄连 B.淡竹叶 C.石膏 D.栀子 E.黄芩 1.善清肺、胃火的药物是( ) 2.善清肺火、安胎的药物是( )
【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】土地使用权交换中,契税由收取货币或其他经济利益的土地出让方缴纳。( )