are web sites that search the web for occurrences of a specified word or phrasE.

______ are web sites that search the web for occurrences of a specified word or phrase.

口服补液及时纠正脱水，应用ORS，说法正确的是（）

下列（）协议属于Internet网络应用层协议。

在Internet中，（26）协议不是其应用层的协议，（27）协议不是其网络层的协议。

网络协议是计算机网络中传递、管理信息的一些规范。下列哪种网络协议是互联网（Internet）所必须使用的：（）。

基于Web的信息系统开发技术主要包括Web网络协议、Web网页技术和数据库连接技术。

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.

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。