货运海员的四小证是怎么？都包括哪些科目？（海员知识问答2023版_924期）
https://onvideo.ssrcdn.com/bs2/onVideo/skyfall/media/34252206655943893972528.mp4 腾讯https://v.qq.com/x/page/n3502rwkglp.html
公众号
https://mp.weixin.qq.com/s/nvNdadp1W3LlhAY_lOG5dg
今日头条
https://www.ixigua.com/i7205863037520052768/
百家号
https://haokan.baidu.com/v?vid=9539630903287570268
美篇
https://www.jianpian.cn/a/8ttwoy2
一点号
https://www.yidianzixun.com/article/V_1agwzHlk
优酷
https://v.youku.com/v_show/id_XNTk0NjQ5MTk4OA==.html
56视频
http://www.56.com/u40/v_MTgyMzk1MTY1.html
哔哩哔哩
https://www.bilibili.com/video/BV13v4y1a7wd/
搜狐
未通过审核
爱奇艺
https://www.iqiyi.com/v_aawyxya430.html
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