binyew 发表于 2017-11-24 08:14:09

ISO 22319-2017 Security and resilience — Community resilience — Guidelines f

ISO 22319-2017 Security and resilience — Community resilience — Guidelines for planning the involvement of spontaneous volunteers

admin 发表于 2017-11-28 10:58:57

谢谢您的分享，金币已奖励!
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