Broadcast, the earliest public electronic medium, has given a huge promotion to the progress of human society and the development of science.

 
  • 摘要廣播是最早出現的電子大眾傳媒,它為人類(lèi)社會(huì )的進(jìn)步和科學(xué)的發(fā)展起了巨大的推動(dòng)作用。
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