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【单选题】
下列哪种说法是错误的（）A.
RealMedia文件优点是流媒体文件，音质较好。缺点是占用带宽大，不能用于网络广播、网上教学和网上点播
B.
windowsMedia文件基于网络流媒体技术的音频格式。其优点是功能齐全，使用方便，支持无失真压缩、失真压缩和语音压缩等压缩方式
C.
WAV文件是较通用的音频格式，其优点是保真度高，适用于音频原始素材的保存缺点是文件数据量大，不易传输与携带
D.
MP3文件是压缩比较高，声音质量较好的音频格式。其缺点是该格式与WAV格式相比，音质较差
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举一反三
【简答题】离合器按弹簧的形式分为哪些?
【单选题】About of the students like keeping diaries in English in our class.
A.
two fifth
B.
two fifths
C.
second five
D.
two five
【简答题】The students like the new teacher. 否定句: The students the new teacher. 一般疑问句: the new teacher?
【单选题】______ the students like the paintings. Which is right? [ ]
A.
The teacher as well as
B.
Nobody but
C.
The teacher besides
D.
All except
【简答题】完形填空. Do you like going to the movies? __ 1 __ of the students like movies very much. Last Monday I went to a middle school and __2__ some students about their favorite movies. Some of their __3__ wer...
【简答题】完形填空。 Do you like going to the movies? 1 of the students like movies very much. Last Monday I went to middle school and 2 some students about their favorite movies. Some of their 3 were really interes...
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