（）是家鸡的祖先，我国自古就有驯化。

管理的关键职能是（）。[护理管理学试题题库]

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。

中国自古就有丰富的原始保险思想与实践，如（　　）。

管理的二重性是指（）。[护理管理学试题题库]

果形美观，肉质细腻，甘甜多汁，而且营养丰富，自古就有“仙家之果”称呼的水果是（）。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。