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

“作用”与“荷载”有什么区别？“荷载效应”与“荷载作用产生的内力”有什么区别？

简述布尔算符（OR）的作用。

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

OR指令的作用是: 。( )

农业机械是指用于农业生产及其（）等相关农事活动的机械、设备。农业机械简称农机。

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.

为什么沟通在农业推广中有极其重要作用？

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。