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 （）.

The（）may examine or re-examine the goods or take samples from them straightaway in the absence of the consignee or the consignor whenever it considers this necessary.

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

Banks have no liability for any delay or loss caused by postal or telex failure.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

从总体中抽取的、对总体具有一定代表性的部分个体叫（）

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

从总体N个单位中抽取n个单位作为样本，每次从总体中抽取一个单位，凡是被抽中的单位不再放回到原来的总体中，接下来抽选的样本的单位，只是从剩下的总体单位中进行抽取，这种抽样方式叫做（）