Sluggish response or action of the hydraulic actuators may be a result of （）.

When latitude and longitude are used，these shall be expressed in（）（and decimals of a minute if necessary），north or south of the Equator and east or west of Greenwich.

术语翻译：Sales by trade mark or brand（）

A continual worsening of the list or trim indicates（）.

A continual worsening of the list or trim indicates（）.

Which is heavier, a pound of cotton or half a kilogram of gold?

It will be a relief over the death of a friend or a relative if the friend or relative dies from ______.

Every deliberate act of wrongdoing by the master or any of the crew against the ship or cargo，without the authorization or privity of the Shipowner or his agent，is（）.

A salvor may be（）the whole or part of the payment due under Salvage Convention to the extent that the salvage operations have become necessary or more difficult because of fault or neglect on his part or if the salvor has been guilty of fraud or other dishonest conduct.

Vessels must be（）valid certificate of nationality or certificated of registry or license.

A(68)copies a photograph，drawing or page of text into the computer．

（ ）estimating is a technique for estimating the duration or cost of an activity ou project using historical data from a similar activity or project.