science technology

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What is the advantange and disadvantage of science and techonoloy?

dandan07 @dandan07 (1906) • China 15 Mar 12

Now with the development of science and technology, our lives are changing a lot. 100 years ago, few homes can have lights and telephones, but now, half of the people can have that. 30 years ago, people can not image a life with...

science technology

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