构造运动按其运动方向分为（）和（），其中阶地的形成是由地壳的（）所引起的。

论述河流阶地的组成和成因。

论述河流阶地的三大成因。

一活动断层横穿过某河段，并导致河段断层上下游同级阶地的高度发生变化。试根据下图所示的野外实测阶地高度数据，分析该断层自T4阶地形成以来发生了几次活动、每次的幅度和时间？

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。

河流阶地（river terrace）

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。