以下关于MPEG标准系列的叙述中，正确的是（）。-问呀课堂

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[单选题]以下关于MPEG标准系列的叙述中，正确的是（）。

AMPEG-1是多媒体内容描述接口标准

BMPEG-2只支持逐行扫描

CMPEG-4引入了基于对象的编码方式

DMPEG-21定义了视频压缩编码算法

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