领导者要科学地用人，需要先识人，即发现人所具有的潜在能力。科学用人的艺术主要表现在（）等方面。

控制组织内部的（），成为公共领导者必须履行的职责。

对于各级领导者来说，技术能力一般与领导者所处的组织层次成（）

担任领导职务的公务员履行领导职责，不担任领导职务的职级公务员依据隶属关系履行职责。

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。

科学技术信息分析主要是在科学技术领域进行的（），这种活动与科技活动有着密切的关系。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。