马斯洛首次提出了需求层次理论，该理论认为人类有（）层次的需求。

马斯洛需求层次理论中，（）需求层次属于激励因子。

马斯洛需求层次理论中，（）需求层次属于保健因子。

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。

Demand curve（or demand schedule） 需求曲线（或需求表）

下列不属于马斯洛需求层次理论层次的（）

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。