EAR是群体中各个体需要量的平均值。

名词解释：平均需要量(EAR)

三级营养师学习重点是常见方法和技能学习，而四级营养师学习重点是学习辅助技能和基本方法。

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（）.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

维护正常的公共秩序既需要道德建设，也需要法律建设。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。