实习三副资历是否可以换出值班水手适任证书？(海员常识百问百答49)
https://onvideo.ssrcdn.com/bs2/onVideo/skyfall/media/34252207226454133005863.mp4 腾讯https://v.qq.com/x/page/z3510fdxv42.html
公众号
https://mp.weixin.qq.com/s/_w4OvCC-FO9OzDsUGF0UJg
今日头条
https://www.ixigua.com/i7224049279676088864/
百家号
https://haokan.baidu.com/v?vid=8050032721262574239
美篇
https://www.jianpian.cn/a/g2hcssy
一点号
https://www.yidianzixun.com/article/V_1dgNtRxs
优酷
https://v.youku.com/v_show/id_XNTk1OTAzNDQyOA==.html
56视频
http://www.56.com/u90/v_MTgzMjg0NjMx.html
哔哩哔哩
https://www.bilibili.com/video/BV17X4y1677U/
搜狐
https://tv.sohu.com/v/dXMvMzY1NjQ1Njk5LzQzOTM0MjI5NS5zaHRtbA==.html
爱奇艺
https://www.iqiyi.com/v_1bsc8u5y5qk.html
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