That is my CD, and（）are yours.

（）is a computer technology that headsets,sometimes in combination with physical spaces or multi-projected environments,to generate realisitic images,sounds and other sensations that simulate a user’s physical presence in a virtual or imaginary environment.

Do you prefer tea or coffee?（）

The important thing is that this is a major breakthrough. “breakthrough” here means an important development or achievement.

上海创建一两所高水平的世界知名大学，其中一所指定为上海大学。

 ______ twice a year, whether it is a car or a bus or a truck, is the rule that every driver must obey in this city.

Is this（）longer or shorter?

Jitter is an unwanted variation of one or more characteristics of a periodic signal in electronics and telecommunications and（）refers to call issues that cause variations in timing or time of arrival.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

（） system is arranged to ensure that water can be drawn from any tank or the sea and discharged to any other tank or the sea as required to trim the vessel.

Practice 10　　(1) Advertisement can be thought of “as the making known in order to buy or sell goods or services.” Advertisement aims to increase people’s awareness and arouse interest. It tries to inform and to persuade. (2) There can be no doubt that the growth in advertisement is one of the most striking features of the western world in this century.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。