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[b][size=4][color=#974806][font=微软雅黑]瀑布图片[/font][/color][/size][/b]
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[b][size=1][color=#974806][font=微软雅黑]在一些情况下，瀑布的位置因悬崖或陡坎被水流冲刷而向上游方向消退;而在另一些情况下，这种侵蚀作用又倾向于向下深切，并斜切包含有瀑布的整个河段。随着时间的推移，这些因素的任何一个或两个在起作用，河流不可避免的趋势是消灭任何可能形成的瀑布。
中国最秀美十大瀑布：大龙湫瀑布，银练坠瀑布，流沙瀑布 ，九寨沟瀑布，镜泊湖瀑布，壶口瀑布，德天瀑布，黄果树瀑布，庐山瀑布，马岭河瀑布，[/font][/color][/size][/b]
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