[单项选择]Television, or TV, the modem wonder of electronics, brings the world into your own home in sight and sound. The name television comes from the Greek word "tele", meaning "far", and the Latin word "videre", meaning "to see". Thus, television means "to see far". Sometimes television is referred to as video, from a Latin word meaning "I see". In Great Britain, the popular word for television is "telly".
Television works in much the same way as radio. In radio, sound is changed into electromagnetic waves which are sent through the air. In TV, both sound and sight are changed into electromagnetic waves. Experiments leading to modern television took place more than a hundred years ago. By the 1920s, inventors and researchers had turned the early theories into working models. Yet it took another 30 years for TV to become an industry.
As an industry, TV provides jobs for hundreds of thousands who make TV sets and broadcasting equipment. It also provides work for actors, technicians,
A. people get on their clothes with programs printed on
B. people prepare and present the programs on TV
C. people like the programs
D. people acted in the TV programs

[单项选择]Television, or TV, the modem wonder of electronics, brings the world into your own home in sight and sound. The name television comes from the Greek word "tele", meaning "far", and the Latin word "videre", meaning "to see". Thus, television means "to see far". Sometimes television is referred to as video, from a Latin word meaning "I see". In Great Britain, the popular word for television is "telly".
Television works in much the same way as radio. In radio, sound is changed into electromagnetic waves which are sent through the air. In TV, both sound and sight are changed into electromagnetic waves. Experiments leading to modern television took place more than a hundred years ago. By the 1920s, inventors and researchers had turned the early theories into working models. Yet it took another 30 years for TV to become an industry.
As an industry, TV provides jobs for hundreds of thousands who make TV sets and broadcasting equipment. It also provides work for actors, technicians,
A. the students can have view of operations with enlarged details
B. the students can operate through TV
C. the students were allowed to learn operations
D. TV is being used by students

[单项选择]Television,or TV the modem wonder of electronics,brings the world into your own home in sight and sound.The name television comes from the Greek word"tele".meaning "far"and the Latin word"videre",meaning"to see".Thus,television means"to see far".Sometimes television is referred to as video,from a Latin word meaning"I see".In Great Britain,thepopular word for television is"telly".
Television works in much the same way as radio.In radio,sound is changed into electromagnetic waves which are sent through the air.In TV,both sound and sight are changed into electromagnetic waves.Experiments leading to modem television took place more than ahundred years ago.By the 1920s,inventors and researchers had turned the early theories into working models.Yet it took another 30 years for TV to become an industry."…others who put on programs"means that______．
A．people get on their clothes with programs printed Oil
B．people prepare and present the programs on TV
C．people like the p

[单项选择]

Television, or TV, the modern wonder of electronics (电子学), brings the world into your own home in sight and sound. The name TELEVISION comes from the Greek work TELL, meaning "far", and the Latin word VIDERE, meaning "to see". Thus, television means "seeing far". Sometimes television is referred to as VIDEO, from a Latin word meaning "I see". In Great Britain, the popular word for television is "telly".
Television works in much the same way as radio. In radio sound is changed into ELECTROMAG NETIC(电磁波)waves which are sent through the air. In TV, both sound and light are changed into electromagnetic waves. Experiments leading to modern television took place more than a hundred years ago. By the year 1920s, inventors and researchers had turned the early theories into working models. Yet it took another thirty years for TV to become an industry.
As an industry ,TV provides jobs for hundreds of thousands who make TV se
A. Greek and English.
B. Latin and English.
C. Greek and Latin.
D. English and Japanese.

[单项选择]Radio and Television
Radio and television were major agents of social change in the 20th century. Radio was once the center for family entertainment and news and television enhanced this revolution by adding sight to sound. Both opened the windows to other lives, to remote areas of the world, and to history in the making. News coverage changed from early and late editions of newspapers to broadcast coverage from the scene. Play-by-play sports broadcasts and live concerts enhanced entertainment coverage. For many, the only cultural performances or sports events they would ever hear or see would come from the speakers or the screens in their living rooms. Each has engaged millions of people in the major historical events that have shaped the world.
If people could look at the sky and see how it is organized into frequency" bands used for different purposes, they would be amazed. Radio waves crisscross (十字形) the atmosphere at the speed of tight, delivering incredible
A. was very popular among the public
B. was the symbol of family entertainment
C. had developed to a high level
D. was facing some technical problems