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。

无结构式访谈事先要准备统一的访谈问卷，由访谈者与职工交谈，并根据情况不断调整内容和方式。（ ）

（）又称标准化访谈，是一种高度控制的访谈，即按照统一的标准和方法（一般采用概率抽样）选取访谈对象，按照事先设计的、有一定结构的访谈问卷进行的访谈。访谈要按照问卷进行，遇到问题，使用访谈指南统一口径。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。