单项选择题
A.to the bottom of the expansion trunk
B.to within 1% to 3% of its capacity
C.to within 1% to 3% inches of its capacity
D.1 to 3 inches from top of the vent pipe
单项选择题 After taking on fuel oil, the hoses should be disconnected and （）.
单项选择题 Your ship has run aground and it is necessary to determine whether or not a compartment has floodedTherefore, you should （）.
单项选择题 One precaution to take prior to working in a freshly painted compartment where there are an excessive amount of paint fumes, is to （）.