简述布尔算符（OR）的作用。

凝汽器起何作用？应用最广泛的哪种形式？

OR指令的作用是: 。( )

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.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

凝汽器中间管板的主要作用就是用来减小换热管的挠度、改善换热管在运行中的（）和（）的。

简述箱形梁的拼装（含钢板组成，由底板，面板，中间定向隔板，左右侧板）。

隔板有铸钢隔板、铸铁隔板，其铸铁隔板使用温度一般低于340℃

口语考试考场内考生座位间没有屏风（隔板），考生前后左右要保持至少多少距离（）。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。