在电源中经常说到有功功率、无功功率、视在功率，下面哪些描述是有功功率的（）。

设t=2，b=3，c=4，d=5，则下面语句输出的是（ ）。 Print3>2*b Or a=c And bc Or c>d

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

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。

在交流电路中功率因数C、OSφ=有功功率/（有功功率+无功功率）。

电容元件的瞬时功率的最大值叫此电容的有功功率。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。