系统中雷达状态包括Unknown、Operational（or ON）、Failed（or OFF）、Detached。

磷脂酰乙醇胺可以接受由（）提供的甲基使乙醇胺甲基化成胆碱。

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）（）

甲酚红试剂配置时，称取甲酚红（），研细，溶于95%乙醇中。

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。

鉴别乙醇和丙醇可以用下列哪个试剂（）

鉴别乙醇和丁醇可以用下列哪个试剂（）

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。