( )不是限制水生生态系统初级生产力的主要因素。

坚定走生产发展、生活富裕、生态良好的文明发展道路，建设（），为人民创造良好生产生活环境，为全球生态安全作出贡献。

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。

全球气温水平分布的特点。

全球气温水平分布特点。

热带雨林在全球净初级生产力中所占的份额远低于海洋。（）

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。