原始人的三大技术成就３００万年前，猿人从长期的经验中，学会了制造工具─—石器。制造石器是人类的第一大技术成就，标志人类不仅是适应自然，而且开始改造自然，这是人类彻底告别动物的最重要的分水岭。从此人类的历史就开始了，所以说人类史和技术史是同样的长短，以... The Three Primitive Technological Achievements About 3 million years ago, the ape-men learned of the tools of manufacture - stone tools from their long experience. Stone is the mankind’s first major technological achievements, marking the human not only to adapt to nature, and begin to transform nature, which is the most important human watershed farewell animal completely. Since then, the history of mankind has begun, so the history of mankind and technology is the same length, with ...