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.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

推销观念以顾客为中心，强调推销产品对企业生存、发展的关键作用。

推销洽谈是推销人员运用各种方式、方法、手段与策略去说服顾客（）

优秀的推销人员能适时地拜访潜在顾客，为顾客提供满意的服务，创造优良的销售业绩，从而使企业战胜竞争对手。这体现了人员推销是（）。

人员推销可以选择那些具有较大可能购买的顾客进行。这充分说明人员推销具有（）。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。