计算机的销售广告中“P4 2.4G/256M/80G”中的2.4G是表示______。

The goal, which they are unlikely to live to see , is tocure, prevent or manage all diseasesin the next 80or so years.

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.

做筛析试验时，80μm应称取25g试样，那么45μm则称取（）g试样。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

物证技术学是以（）和（）为研究对象的一门边缘学科，是（）、（）、（）等自然科学学科与（）的有机融合。

物证技术学是一门文理交叉的学科，在研究和学习时应当注意哪些？

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。