问题 单项选择题

视频压缩编码的原理是()

A、将视频数据中色度分量信号去掉,节省编码空间

B、利用视频数据中存在的相关性,去掉冗余信息

C、将画面的分辨率降低,减少参与编码的像素数

D、对画面进行抽样,减少需要编码的帧数

答案

参考答案:B

阅读理解

All around the world, people drink tea. But tea does not mean the same thing to everyone. In different countries people have very different ideas about drinking tea.

In China, for example, tea is always served when people get together. The Chinese drink it at any time of the day at homes or in teahouses. They prefer their tea plain with nothing else in it. Tea is also important in Japan. The Japanese have a special way of serving tea called a tea ceremony. It is very old and full of meaning. Everything must be done in a special way in the ceremony. There is even a special room for it in Japanese homes.

Another tea drinking country is England. In England, the late afternoon is “teatime”. Almost everyone has a cup of tea then. The English usually make tea in teapot and drink it with cream and sugar. They also eat cakes, cookies and little sandwiches at teatime.

In the United States people drink tea mostly for breakfast or after meals. Americans usually use tea bags to make their tea. Tea bags are faster and easier than making tea in teapots. In summer, many Americans drink cold tea --- “iced tea”. Sometimes they drink iced tea from cans, like soda.

小题1:The passage is mainly talking about _________.

A. Chinese tea               B why tea is important

C. the teatime in England     D. different ways of tea drinking

小题2:The word “plain” in line 4 may mean _____________.

A.simple

B.going

C.hard

D.drink小题3:The Chinese drink tea __________.

A.for breakfast

B.in a special way

C.when they get together

D.only in teahouses小题4: Iced tea is popular _____________.

A.in winter

B.in England

C.for lunch

D.in America小题5:The English like to _____________.

A.eat something with their tea

B.drink their tea plain

C.have tea with dinner

D.drink their tea in teahouses

单项选择题