我国在国家标准管理办法中规定国家标准实施（ ）年内要进行复审。
- A.2
- B.3
- C.4
- D.5
正确答案及解析
正确答案
解析
考查我国各级标准的制定以及标准的有效期。
我国在国家标准管理办法中规定国家标准实施５年内要进行复审，即国家标准有效期一般为５年。
【思路点拨】此内容需要大家记住，为常考知识点：国家标准5年复审。
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