Do you konw?(你知道吗?) 帮帮忙,一道英语题.the first radios began in the 1920s at that time the sound was very poor.so prople had to listen on head phones.television began in the 1930s.itwas black and white.inthe 1960s,the tv programme

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Doyoukonw?(你知道吗?)帮帮忙,一道英语题.thefirstradiosbeganinthe1920satthattimethesoundwasverypoor.soproplehadtol

Do you konw?(你知道吗?) 帮帮忙,一道英语题.the first radios began in the 1920s at that time the sound was very poor.so prople had to listen on head phones.television began in the 1930s.itwas black and white.inthe 1960s,the tv programme
Do you konw?(你知道吗?) 帮帮忙,一道英语题.
the first radios began in the 1920s at that time the sound was very poor.so prople had to listen on head phones.
television began in the 1930s.itwas black and white.inthe 1960s,the tv programmes begab to have colour.
do you know when computers begin?
急急急急急急急急急急急急急急急!谢

Do you konw?(你知道吗?) 帮帮忙,一道英语题.the first radios began in the 1920s at that time the sound was very poor.so prople had to listen on head phones.television began in the 1930s.itwas black and white.inthe 1960s,the tv programme
Computers began at Feb.15th, 1946, the first computer was named Eniac.
电脑于1946年2月15日诞生,第一台电脑名叫Eniac
希望对你有帮助,谢谢!

1946

the first computers is begin in the 1946,February 14,called ENIAC

computers bengan in 1946.电脑产于于1946年
computers bengan in 1940s.电脑产生于19世纪40年代