区分度指数，试题的区分能力就越强，一般认为，区分度指数高于0.3，试题便可以被接受。

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.

When loading or discharging dry mud or cement，crew members should use goggles and（）.

Effects which are dutiable or subject to prohibitions or restrictions should be declared in （）.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

一般认为核膜来源于（）

在心理学上，一般把（）年在德国莱比锡大学创建的心理实验室视为心理学独立的标志，把（）誉为心理学独立的旗手。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。