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【单选题】
以下不属于多媒体的视频文件格式的是A.
*. avi
B.
*. wma
C.
*.mpg
D.
*. dat
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
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皮皮学刷刷变学霸
举一反三
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A.
The benefits of strong business competition.
B.
A proposal to lower the cost of production.
C.
Complaints about the expense of modernization.
D.
Suggestions concerning new business strategies.
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