（）是认识政府经济管理的前提，规定了政府经济管理活动的基本方向，是确定和划分政府经济管理职权的基础和依据，是设置政府经济管理机构的基本依据。

政府为了扶持农业,对农产品实行支持价格。但政府为了维持这个高于均衡价格的支持价格,就必须:( )

政府为了扶持农业,对农产品实行支持价格。但政府为了维持这个高于均衡价格的支持价格,就必须( )。

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。

某种产品的价格上限一定高于其均衡价格。

某种产品的支持价格一定高于其均衡价格。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。