氨基糖苷类抗生素的抗菌作用机理是：

Shutdown price（or point，or rule） 停业价格（或停业点、停业原则）

翻译：With Average or With Particular Average（WA or WPA）（）

根据中兽医理论，阐述疾病发生发展与转归的机理

简述布尔算符（OR）的作用。

OR指令的作用是: 。( )

雷尼替丁抑制胃酸分泌的作用机理是（）；奥美拉唑抑制胃酸分泌的作用机理是（）；哌仑西平抑制胃酸分泌的作用机理是（）。

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.

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。