羽毛状水系和扇形状水系的成因是什么?????救救我啊!!!!快来人啊!!!救命啊!!!!
回复(11) 2011-06-01 22:13 来自版块 - 
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zhuhong12345678谢谢~~~~(2011-06-03 00:39)
teacherstarcj07(2011-06-02 18:49)
zhuhong12345678置顶!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!(2011-06-02 12:38)
zhuhong12345678老师发个图片来呗~~~ (2011-06-02 07:25)
teacherstarcj07羽毛状水系:它多发育在断陷谷中或断崖的一侧,或是线状褶皱地区。流经甘肃、陕西的渭河及其支流,钱塘江和滦河等水系即为比较典型的羽毛状水系。 发育在大型冲积扇上或扇形三角洲上的河系,河流从谷口或三角洲顶点向外成扇形散开。(2011-06-01 23:44)
zhuhong12345678拜托不要无视我i·························(2011-06-01 22:49)
zhuhong12345678来人呐!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!(2011-06-01 22:34)
zhuhong12345678早就说让你莫装*!!装*遭雷劈吧!!!(2011-06-01 22:26)
wangguimei666我真被劈了~~~~~(2011-06-01 22:25)
zhuhong12345678原帖由 wangguimei666 于 2011-6-1 22:15 发表 [图片] 我来了 但我救不了你~~~sorry~~ 你头像被雷劈了么!!!???[附件]救命啊!!!有人被雷劈啦!!!! 嘿嘿~~开玩笑~~(2011-06-01 22:17)

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