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 （）.

网络营销的渠道包括网络直销和网络分销。

网络直销比网络分销成本低，所以网络营销主要采用网络直销的方式。

网络直销比网络分销成本低，所以网络营销主要采用网络直销的方式。

网络营销的渠道包括网络直销和网络分销。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

直复营销与直销的最大区别在于直销是一种无店铺的零售方式，而直复营销却是有店铺的。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。