单项选择题

When anchoring,it is a common rule of thumb to use a length of chain（）.

A.five to seven times the depth of water
B.seven to ten times the depth of water
C.twice the depth of water
D.twice the depth of water plus the range of tide

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单项选择题

The term lee side refers to the（）.

A.side of the vessel exposed to the wind
B.Side of the vessel sheltered from the wind
C.Port side
D.Starboard side

单项选择题

Notwithstanding the provisions of this regulation, the segregated ballast conditions for oil tankers less than 150 meters in length shall be to the（）of the Administration.

A.contract
B.charter party
C.satisfaction
D.agreement