翻译：With Average or With Particular Average（WA or WPA）（）

外部性可能是外部经济的，这是因为（）。

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.

下面哪一项经济活动可能引起正外部效应（）。

下面（）是外部性经济的正效果。

不管是负外部效应还是正外部效应的存在都会引起实际产量偏离社会最优产量。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

广西要加快（）和珠江—西江经济带开放开发，构建面向东盟的国际大通道。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

外部正效应有利于社会经济发展，而外部负效应损害社会经济发展。