直接看这个 5,000赞 的回答吧： 国家标准免费了，在哪里可以下载？ 为了方便阅读，把原文附上： 目录： part 1：去哪里下载国家标准？ part 2：如何判断标准是现行/废止？ 知乎，中文互联网高质量的问答社区和创作者聚集的原创内容平台，于 2011 年 1 月正式上线，以「让人们更好的分享知识、经验和见解，找到自己的解答」为品牌使命。知乎凭借认真、专业.
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