简述直剪仪的优缺点。【三峡大学2006年研究生入学考试试题】

简述大气圈的垂向分层。

简述大气圈的垂向分层？

黄土的垂向渗透系数远大于水平渗透系数，试分析一下这对黄土高原地下水的影响。

黄土的垂向渗透系数远大于水平渗透系数，试分析一下这对黄土高原地下水的影响。

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。