原始数据分布不明时，表示其集中趋势易采用（）。

偏态分布数值资料，对数变换后，分布仍然呈偏态，描述原始数据集中趋势宜用（）

（）可用于展示原始数据的分布，同时还保留原始数据在图形里面。

百分等级分数是指原始数据在常模团体中的相对位置,百分等级越高,原始数据在分布中的相对位置( )。

可以在（）阶段采用Make-or-buy决策分析。

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。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。