写出镁原子基态和第一电子激发态的光谱项。

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.

When loading or discharging dry mud or cement，crew members should use goggles and（）.

Effects which are dutiable or subject to prohibitions or restrictions should be declared in （）.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

（）后从基态跃迁到激发态，其获得的激发能有三种可能的转化方式：1.发生化学反应2.以发射光的形式耗散能量3.通过其他方式转化成热能。

核素的原子核由激发态或高能态向基态或低能态转变时，放出γ光子的衰变是（）。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。