单项选择题
The rubbish should be collected on the poop deck and disposed of （）miles off the land.
A.12 B.25 C.500 D.5000
单项选择题 The rubbish should be collected on （）and disposed of 25 miles off the land.
单项选择题 You’d better use （）to remove the oil on the plates.
单项选择题 After leaving the port, we used （）to clean the empty holds and decks.
