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CD-ROM和CD-R的物理尺寸相同,因此它们的结构是相同的。()

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我国和西欧大部分国家都使用PAL制式,规定每秒30帧,每帧625行。()

By taking Oriana as an example, Ann Levine suggests that law schools______.

A. haven"t lost popularity among students
B. are attracting all the elites nationwide
C. don"t charge as much as people suppose
D. rank high among all the universities

在RGB色彩模型中当三种基本颜色等量相加时会得到黑色。()

我国使用的视频制式标准为PAL制式。()

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