与表达式职称="教授" OR 职称="副教授"等价的SQL表达式为职称（）（"教授"，"副教授"）或职称（）"%教授"

美国战略学家迈克尔·波特提出企业的基本竞争战略主要有（　　）。

美国著名战略学家、哈佛大学的迈克尔·波特教授认为战略是（）。

（）的创始人是哈佛大学商学院的迈克尔•波特教授。

价值链理论是哈佛大学商学院教授迈克尔·波特于（）年提出的。

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。