可学答题网 > 问答 > 船员职务名称题库
目录: 标题| 题干| 答案| 搜索| 相关
问题

Each hand portable,semi-portable and f


Each hand portable,semi-portable and fixed fire extinguishing unit on a ship must be tested and inspected at least once every().

  • Asix weeks
  • Bsix months
  • Ctwelve months
  • Dtwo year
参考答案
参考解析:
分类:船员职务名称题库