西南联大、西北联大是哪个时期我国著名的两所高等学校？（）

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

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）（）

留置导尿管病人的护理要点？

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。

患者，男性，45岁，车祸导致高位截瘫合并尿潴留。留置导尿的护理不正确的是（）。

患者，男性，45岁，车祸导致高位截瘫合并尿潴留。留置导尿的护理不正确的是（）。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。