问题 单项选择题

对于本身设有室外宏蜂窝基站的建筑,当基站设备配置有余量时,宜()作为本楼宇室内天馈线分布系统的信号源。

A.采用射频直放站

B.耦合部分基站信号

C.采用光纤直放站

D.采用新建微蜂窝基站

答案

参考答案:B

问答题 简答题
阅读理解

More and more often we heard of people talking about Karaoke(卡拉OK)。 But what on earth it is about, still remains a question for many people. Karaoke is a sort of acoustic equipment which was invented in Japan around the middle of the 1970's. It means "a band without people" in Japanese. In fact, it is just a music tape without words. This equipment first appeared in some public houses and snack bars, and mainly for the customers to enjoy themselves. Most of the music in Karaoke was popular music. Therefore, at times, when anyone felt like it, he might sing songs to the accompaniment of the music that came from the equipment. Shortly after its invention, Karaoke was spread to the whole world. It was introduced to China and was welcomed by many people. Although you are not a good singer, or even sometimes you may sing out of tune, you can always enjoy yourself by singing Karaoke.

小题1:In this passage "band" means "group of persons ________."

A.who play games on the sports ground

B.who play music together

C.living in the same neighborhood

D.doing things together under a leader and with a common purpose小题2:Karaoke is just a ______.

A.cassette tape with only music

B.cassette tape recorder

C.band from Japan

D.voice recording equipment小题3:People went to public houses and snack bars ______when Karaoke appeared.

A.to have a good time

B.to have something to drink

C.to get something to eat

D.to buy the equipment小题4:Karaoke was spread to the whole world ________.

A.as soon as it was invented

B.long before

C.not long after it was invented

D.before long小题5: The main idea of this passage is ______.

A.all persons like to play Karaoke

B.to introduce Karaoke to the people

C.Karaoke is a wonderful equipment

D.Karaoke is used everywhere including snack bars