Five or more short blasts on a vessel’s whistle indicates that she is（）.

A(66)computer is a personal computer whose hardware is capable of using any or all 0f the following media in a program：audio，text，graphics，video and animation．

A sound which is capable of distinguishing one word or one shape of a word from another in a language is a__________．

（）an order for one thousand tons or more we grant a special discount of 10%.

The main bearing shells often have a thin （） of lead or indium to provide a layer giving protection against corrosion.

（）is a space system using one or more artificial earth satellites.

（）is a space system using one or more artificial earth satellites.

Each （）consists of two or more panels.

● Insufficient （71）can cause a processor to work at 50% or even more below itsperformance potential.（71）

If necessary to avoid collision or allow more time to（）the situation，a vessel shall slacken her speed or take all way off by stopping or reversing her means of propulsion．

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.

●A (68) is a feature of the system or adescription of something the system is capable of doing in order to fulfill the system's purpose.