（）, 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 （）.

总体方差是各个数据与其（）的离差平方的平均数，通常以σ²表示。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

小明在智力测验中的得分是95分，而与小明同年龄组的平均得分为80，那么小明的离差智商是（）。

小明在智力测验中的得分为95，而与小明同年龄组的平均得分为80，那么小明的离差智商是（）。

小明在智力测验中的得分为95，而与小明同年龄组的平均得分为80，那么小明的离差智商是（）

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。