（）, 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（）.

Effects which are dutiable or subject to prohibitions or restrictions should be declared in （）.

（）are liable to be stoten, pilfered or may damaged due to improper handing or stowage.

市场的基本关系是商品供求关系，基本的活动则是商品交换（商品买卖）活动。（）

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

人们相互交换商品，看起来是商品与商品之间的交换关系，实际上是商品生产者相互比较和交换各自劳动的关系。

为什么说民主的客观基础是市场经济和商品交换关系？

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。