湖泊相、沼泽相、冰川相沉积属于（）沉积。

( )15牛轭湖相沉积是( )地质作用造成的

描述第四纪沉积层的成因等特征的地质图称为（）地质图。

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.

为什么把系统科学作为环境地质学的基础理论？

沉积相的概念包含两层含义：一是反映沉积岩的特征；二是指示沉积（）。

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。