99色精品-9色在线-99色在线-99色视频 国产欧美日产一区二区三区_亚洲精品亚洲人成在线观看_四虎在线精品永久观看_免费一级a一片久久精

單項選擇題

The supply of carbon dioxide used in the fixed extinguishing system aboard a cargo vessel MUST be at least sufficient for().

A.all the spaces of a vessel
B.all cargo spaces
C.the engine room and largest cargo space
D.the space requiring the largest amount

微信掃碼免費搜題