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那些适用于工程项目施工阶段与质量控制有关的通用的、具有普遍指导意义和必须遵守的基本文件即()。
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A．MPEGB．MIDIC．AIFFD．TTS
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关于见证点和停止点的说法中,不正确的一项是()。
软磁盘存储器是一种辅助存储器设备，软盘驱动器在寻找数据时，()。软盘加上写保护后，对它可以进行的操作是()。
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