We have finished（）and are ready for sailing．

To prevent the riser system from buckling under its own weight，upward tension is provided by the（）.

A.riser stabilizers
B.guideline tensioning system
C.riser tensioning system
D.guideline stabilizers

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To（）sanitary water from any vessel，an application shall be made to Harbor Authorities for approval.

A.discharge
B.recircle
C.load
D.take in

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