简述直剪仪的优缺点。【三峡大学2006年研究生入学考试试题】

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。

简述农学（广义、中义、狭义）的含义。

水平展开型植物可以增加景观的宽广度，是植物产生外延的动势。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

关于植物景观概述正确的是（）。

关于植物景观概述正确的是（ ）。