根据现行税法，中国资源税的课税对象为（）。

资源税是以国有资源的销售为课税对象的一个税种。

资源税以各种自然资源的开采者为课税对象，是为了调节资源级差收入并体现国有资源有偿使用而征收的一种税。资源税的特点有（　　）。

行为税是指为实现特定政策目的，以（）为课税对象而征收的税种。

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。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

资源课税是以资源为征税对象的税种的总称。目前属于资源课税的税种主要有()。