ANB指令是（）指令，ORB是（）指令，与and、or指令不同。

最低死亡率（minimun mortality，or ecological morality）

口服补液及时纠正脱水，应用ORS，说法正确的是（）

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.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

假如某因素与某病关系的病例对照研究结果的OR值为0.3（P＜0.01），最可能的解释是（）。

出于政治军事、经济、个人成功等非医学目的的实验研究，要么已经被历史证明是严重背离人类伦理的、要么需要进行谨慎的伦理评估，使之与医学目的一致。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。