97免费在线观看视频,亚洲综合自拍网,黄色毛片免费观看,热久久综合网,免费看日产一区二区三区 狠狠操av,久久久涩涩涩,在线精品免费视频,人人插天天干,久久91精品国产91久久

單項(xiàng)選擇題

During inspection of oil and oily mixtures from machinery spaces, which of the following factors should be taken into account by the PSCO? ()

A.The quantity of oil residues generated
B.The capacity of sludge and bilge water holding tank
C.The capacity of the oily water separator
D.All of the above

微信掃碼免費(fèi)搜題