救生艇置放在于艇甲板。（） A: Lifeboatislocatedontheboatdeck. B: Lifeboatislocatedonthemaindeck. C: Lifecraftislocatedontheboatdeck. D: Lifeboatislocatedonthelowerdeck.
救生艇置放在于艇甲板。（） A: Lifeboatislocatedontheboatdeck. B: Lifeboatislocatedonthemaindeck. C: Lifecraftislocatedontheboatdeck. D: Lifeboatislocatedonthelowerdeck.
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