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

简述布尔算符（OR）的作用。

小明、小芳、小红、小亮四位医生在选择自己工作的科室，小明说：“小芳去内科，我就肯定去内科”；小芳说：“小红去内科，我就不去内科”；小红说：“不管你们去不去内科，我都去”；小亮说：“小明和小芳中只要有一人去内科，我就去内科”。若上述论述都为真，下列选项可能为真的是：（）

OR指令的作用是: 。( )

对脑血管梗死的危险因素进行了病例对照研究，脑血管梗死患者100人，其中A型性格45人，非脑血管梗死患者100人，A型性格25人，A型性格的OR值为

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。