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国际社会保护青少年的常见做法是由政府对辖区内的网站进行内容分级。基于网络自由及成人有自主选择权的考量，大多数的国家不会对外国的成人网站进行直接的封锁或限制。不过在政府、企业、图书馆、车站、教育机构等场所，通过在内部网屏蔽等手段封锁成人网站，或是对辖区内的网站进行内容分级。[来源请求]
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