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。

由（）组成的钢结构适用于大跨度和高层结构。

大豆由哪几部分组成？

斜拉桥是典型的由悬索结构和梁式结构组成的组合式桥。其主要承重构件是（　　）。

一个典型的呼叫中心由（）部分组成。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

关系数据模型由关系数据结构、关系操作集合和（）3大要素组成。