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问题详情

A cutoff valve in the fire-main system of a ship may be closed to protect the portion of the system on an exposed deck from（）.

A、damage from crane operations

B、being used for wash down purposes

C、accidental diversion of flow to wrong location

D、freezing

时间：2022-01-04 04:42 关键词：燃烧与爆炸

答案解析

D

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