In comparison to electric power，hydraulic power for jacking systems has the advantage of（）.

单项选择题I’ll have the damaged parts repaired in Hongkong and send you in due course the amount of expenses（）.

A.incurred
B.happened
C.spent
D.paying out

单项选择题If your radiotelephone fails while underway,（）.

A.you must visually signal oncoming vessels
B.you must immediately tie up in the nearest port until the radiotelephone is repaired
C.you must anchor until the radiotelephone is repaired
D.the loss of the radiotelephone must be considered in navigating the vessel

单项选择题If your bridge-to-bridge radiotelephone ceases to operate，you must（）.

A.immediately anchor your vessel and arrange for repairs to the system
B.moor your vessel at the nearest dock available and arrange for repairs to the system
C.arrange for the repair of the system to be completed within 48 hours
D.exercise due diligence to restore the system at the earliest practicable time

单项选择题If the ship sustains such damage that repairs are necessary，the master must put into the nearest port（）such repairs can be effected.

A.which
B.at which
C.there
D.at there

单项选择题If the Certificate of Inspection of a damaged tank barge has expired，which certificate may be issued to allow its movement to a repair facility?（）

A.Change of employment
B.Permit to proceed
C.Application for inspection
D.Temporary Certificate of Inspection