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人类社会的产生和发展，离不开一定的自然环境和气候条件。一般地说，人类的文明总伴附着大江大河及大江大河流经的平原地域，诸如尼罗河孕育了埃及文明；恒河、印度河孕育了印度文明；底格里斯河、幼发拉底河孕育了古巴比伦文明；黄河、长江孕育了中华文明，而黑龙江及其分支?
The emergence and development of human society can not be separated from certain natural and climatic conditions. In general, human civilization is always accompanied by large rivers and plains where large rivers flow, such as the Nile, which gave birth to Egyptian civilization. The Ganges and Indus rivers gave birth to Indian civilization. The Tigris and Euphrates gave birth to ancient Babylonian civilizations. The Yellow River The Yangtze River gave birth to Chinese civilization, while Heilongjiang and its branches?