信息处理技术员考生信息库中，具有“准考证号”、“姓名”、“笔试成绩”与“机考成绩”等字段。按“笔试成绩＞0 and机考成绩＞0”查询，有r1人；按“笔试成绩＞0 or机考成绩＞0”查询，有r2人，则必然有关系(69)。

设t=2，b=3，c=4，d=5，则下面语句输出的是（ ）。 Print3>2*b Or a=c And bc Or c>d

翻译：With Average or With Particular Average（WA or WPA）（）

不需要进行肌功能整塑的是（　　）。

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。

布尔逻辑具体检索时，是通过三个布尔运算符来实现其功能的：AND、OR、（）。