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第三次科技革命(20世纪四五十年代-21世纪之交) 1.标志:信息技术 2.代表:电子计算机(1946年第一台) 3.最早从美国开始 4.空间技术的发展:人造地球卫星、载人宇宙飞船、航天飞机 5.地球村进入信息时代 (1 Jan 1945 Jahr – 1 Jan 2000 Jahr)
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1 Jan 1945 Jahr
1 Jan 2000 Jahr
~ 55 years
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