经济学所讲的外部经济，房地产利用中主要体现为房地产的( )。(2011年试题)

经济学说史上在文献中第一次提出“政治经济学”一词的是（）

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.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

说明萨伊效用价值论在经济学说史上的影响。萨伊的价值理论是在“财富的生产”篇中说明的。萨伊认为所谓生产，不是创造物质，而是创造效用。而效

萨伊把政治经济学划分为（）三个部分。

萨伊对经济学的贡献有哪些？

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。