体液浓度随环境渗透浓度改变而改变的动物是（）。

若设定的条件表达式为“＜60 Or＞100”表示( )。

若设定的条件表达式为“＜60 Or＞100”，则表示( )。

管理案例不用于习题，是因为案例不需要像习题那样带入解题公式或使用计算方法。

二氧化硫渗透管的渗透率为0.5μg/min，稀释气流量为60L/h，试计算二氧化硫的浓度（）。

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。