In view of（）bilge water from any vessel，an application shall be made to Harbor Authorities for approval．

In towing，chocks are used to（）.

A.protect the towline from chafing
B.secure the end of the towline on the tug
C.stop off the towline while retrieving it
D.absorb shock loading on the towline

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In the case of new crude oil tankers，the additional ballast permitted shall be carried in cargo tanks only if such tanks have been（）before departure from an oil unloading port or terminal.

A.inerted
B.crude oil washed
C.diluted
D.cleaned

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