输出继电器（OR）通过一对（）触点将PLC的控制信号传递给负载。

射极输出器的主要特点是（）。

射极输出器的电压放大倍数（）

射极输出器的反馈系数F（）。

射极输出器的特点之一是具有（）

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。

射极输出器的输出电阻小，说明该电路（）。

射极输出器的输出电阻小，说明该电路的（）

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。