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.

人类历史发展中已经存在的社会治理模式是（）。

人类历史发展中已经存在的社会治理模式是（）。

人类社会治理国家的模式包括（）。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

历史的联系、历史的发展、历史的积淀在人类现实存在中具有决定性的意义（）

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。