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【单选题】
目前在创作多媒体作品时，使用声音变得越来越频繁了，下列选项中不属于声音信息加工的是（）。A.
将一首wav格式的歌曲转换成mp3格式
B.
将音乐文件“高山流水.wav”的一部分截取出来作为手机的来电铃声
C.
召开会议时，在笔记本电脑上使用Goldwave软件录制会议上每个人的发言
D.
用千千静听播放计算机中保存的mp3格式的歌曲
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反馈参考答案：
举一反三
【单选题】Demand is said to be elastic if
A.
the price of the good responds substantially to changes in demand.
B.
demand shifts substantially when income or the expected future price of the good changes.
C.
buyers do not respond much to changes in the price of the good.
D.
buyers respond substantially to changes in the price of the good.
【简答题】中国央行的 是人民币汇率市场的“锚”。
【单选题】Demand is said to be inelastic if
A.
the quantity demanded changes only slightly when the price of the good changes.
B.
demand shifts only slightly when the price of the good changes.
C.
buyers respond substantially to changes in the price of the good.
D.
the price of the good responds only slightly to changes in demand.
【单选题】Demand is said to be elastic if
A.
the price of the good responds substantially to changes in demand.
B.
demand shifts substantially when the price of the good changes.
C.
buyers do not respond much to changes in the price of the good.
D.
the quantity demanded responds substantially to changes in the price of the good.
【单选题】Demand is said to be inelastic if
A.
buyers respond substantially to changes in the price of the good.
B.
demand shifts only slightly when the price of the good changes.
C.
the quantity demanded changes only slightly when the price of the good changes.
D.
the price of the good responds only slightly to changes in demand.
【单选题】You'll see sons who are making their fathers proud - not because they are star athletes, millionaires, or celebrities .
A.
famous people
B.
artists
C.
money-makers
D.
scholars
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