自然资源使用权的取得通常有（）

自然资源使用权变更的原因通常有（）。

简述我国自然资源使用权的取得方式。

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。

在我国，自然资源国家所有权取得方式主要有法定取得、强制取得、天然孳息和（）。

在我国，自然资源国家所有权的取得方式有法定取得、强制取得和天然孳息与（）

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。