外力又称载荷，按载荷的表现形式，又称（）载荷、冲击载荷，交变载荷等。

有SQL语句： SELECT * FROM 教师 WHERE NOT (工资＞3000 OR 工资＜2000) 与如上语句等价的SQL语句是

压力容器运行过程中，比较常见的载荷有压力载荷、温度载荷、重量载荷、风力载荷、地震载荷等。

机械零件常见的损坏形式有（）

金属材料与热处理是一门研究金属材料的成分、组织、热处理与金属材料性能之间的关系和变化规律的学科。

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。

建没工程施工合同常见的形式有（）。

金属嵌件常见的形式有圆筒形、圆柱形、（）等。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。