表面装配元器件同传统的元器件一样，也可以分为无源元件（SMD），有源元件（SMC）。（）

常见的无源电路元件有电阻元件、电感元件和电容元件；常见的有源电路元件是电压源元件和（）。

无源二端理想电路元件包括以下哪些( )

何谓霍尔效应？其物理本质是什么？用霍尔元件可测哪些物理量？请举出三个例子说明。

何谓霍尔效应？其物理本质是什麽？用霍尔元件可测量哪些物理量？请举出一个汽车上的例子说明。

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。