问题题干答案解析相关问题热门问题最新问题

问题详情

Before welding is permitted on a fuel tank, it must be certified or declared （）

A、safe for becoming rounded

B、safe for hot work

C、not safe for personnel

D、not safe for hot work

时间：2022-01-09 15:54 关键词：船舶电气与船舶安全

答案解析

B

相关问题