We test the water spray fire protection system of fire-protected lifeboats every 3 months,___the abandon ship drill.

题库:船长 类型:最佳选择题 时间:2019-02-14 17:22:46 免费下载:《甲类船长英语考证》Word试卷

We test the water spray fire protection system of fire-protected lifeboats every 3 months,___the abandon ship drill.
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