国家实行医师资格考试制度，考试分为执业医师资格考试和执业助理医师资格考试。实行国家统一考试，每年举行一次。考试类别分别是（）

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.

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.

灯光的倍增器参数（Multiplier）只能使灯光的亮度增加。（）

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

解决旋转舞台变频器对灯光信号的干扰的方法是什么？

光透过率

什么是可见光透过率？

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。