上游为工厂、下游为配送中心或批发商的物流结点叫（）

Every deliberate act of wrongdoing by the master or any of the crew against the ship or cargo，without the authorization or privity of the Shipowner or his agent，is（）.

（）, or drum is used for hauling in or letting out the wires or ropes which will fasten the ship to the shore.

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 （）.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

“科斯定理”最早的表述者为诺贝尔经济学奖获得者（）

水污染防治之难，在于水的（）。水自源头奔流而下，被沿岸居民、企业反复利用，任何环节疏于治理，都可能让水变脏。水往低处流的特性，也导致“上游排污，下游遭殃”，上游地区的污水如不加处理直流下游，下游往往（）也难以应对。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。