单项选择题
A.be treated according to the C-Es command exactly
B.be treated according to MARPOL
C.accumulate in bilges or on tank tops in accordance with MARPOL
D.discharge to sea at the specified areas
单项选择题 All items such as steam pipes, exhaust pipes and fittings which, because of their location and operating temperature, present a hazard should be adequately lagged.That means the items should（）
单项选择题 In machinery space, the valves, pipes should be（）
单项选择题 The guard, fencing or shielding for moving parts or machinery can be removed for repair only when the machinery it belongs to（）