管理的关键职能是（）。[护理管理学试题题库]

什么是岩浆岩？岩浆岩有哪些主要矿物、结构和构造？常见岩浆岩的鉴别特征是什么？

岩浆岩是岩浆在内力地质作用下，由深处侵入地壳表层或喷出地表，经过冷凝固结而形成的岩石，是失去挥发成分的岩浆冷凝物。

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。

简述岩浆爆发作用和岩浆爆发矿床。

管理的二重性是指（）。[护理管理学试题题库]

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。