______ 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（）注释为隐藏型注释。

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。

要设置注释属性，可以用注释工具选择注释后执行下列哪些操作之一（）。

使用注释标签下的“搜索注释”命令基于文本查找特定的注释，下列哪些选项可以作为查找的条件？（）