Before starting a gasoline engine on a motorboat，you should make sure for safety that ______．
A、Thegasolinetankisfull
B、Thebilges，cabins，etc．arethoroughlyventilated
C、Youhavefreshwateronboard
D、Eachoftheaboveisfollowed
发布时间：2025-05-21 05:16:46
