有关气候变迁的纪录片有《难以忽视的真相》。

从气候变迁的角度讲，北宋中期至南宋中期，是（）

从气候变迁的角度讲，东汉、三国直到南北朝，是（）

从气候变迁的角度讲，从春秋至西汉时期，便进入了（）

地质时期的气候变迁中，最近的一次大冰期被称为什么？

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。