道德建设的核心体现并决定着道德建设的根本性质和发展方向，规定着道德领域的种种道德现象。我国社会主义道德建设的核心是（）

集中体现社会主义文化建设性质和方向的是（ ）。

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（）.

（）, or drum is used for hauling in or letting out the wires or ropes which will fasten the ship to the shore.

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.

The （） is used for hauling in or letting out the wires or ropes.

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

When loading or discharging dry mud or cement，crew members should use goggles and（）.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

面料经纬向判定，对于有布边的面料，与边平行的方向为（）（经向or纬向）

道德建设的核心，体现并决定着道德建设的性质和方向。我国社会主义道德建设（）

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。