船员四小证到期后是否需要进行知识更新培训？(海员常识百问百答62)
https://onvideo.ssrcdn.com/bs2/onVideo/skyfall/media/34252207226488395681811.mp4 腾讯https://v.qq.com/x/page/w3510p6wz1c.html
公众号
https://mp.weixin.qq.com/s/yEDnvad2re-wmFT6lSYcAA
今日头条
https://www.ixigua.com/i7224055401526854179/
百家号
https://haokan.baidu.com/v?vid=14061228444676615218
美篇
https://www.jianpian.cn/a/g2j7exa
一点号
https://www.yidianzixun.com/article/V_1dqbbpak
优酷
视频屏蔽
56视频
http://www.56.com/u67/v_MTgzMjg2MDE2.html
哔哩哔哩
https://www.bilibili.com/video/BV1FX4y1671Z/
搜狐
https://tv.sohu.com/v/dXMvMzY1Nj ... Y2My5zaHRtbA==.html
爱奇艺
https://www.iqiyi.com/v_1kvqlgy10i0.html
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