2005锟斤拷锟斤拷^锟絝锟叫學(xu锟斤拷)锟斤拷一锟斤拷锟斤拷锟斤拷锟斤拷試锟斤拷
锟斤拷(l锟斤拷i)源锟斤拷锟絎(w锟斤拷ng)锟絡(lu锟斤拷)锟結源 2009-10-12 18:02:57
锟斤拷锟斤拷1锟斤拷锟斤拷锟叫既岋拷锟斤拷锟斤拷锟斤工锟教碉拷锟叫撅拷锟缴癸拷锟斤拷锟街岋拷锟节凤拷锟斤拷锟斤拷锟斤拷W(xu锟斤拷)锟叫撅拷锟缴癸拷锟斤拷锟角ｏ拷锟斤拷
锟斤拷锟斤拷A.锟斤拷系锟斤拷锟絪锟斤拷水锟斤拷B.锟斤拷隆锟斤拷C.锟斤拷(x锟斤拷)锟斤拷锟絎(xu锟斤拷)锟絝(shu锟斤拷)D.锟斤拷锟斤拷使锟矫碉拷锟揭革拷锟斤拷锟斤拷
锟斤拷锟斤拷2锟斤拷锟狡學(xu锟斤拷)锟斤拷锟斤拷锟斤拷锟矫無(w锟斤拷)锟斤拷锟斤拷锟斤拷锟斤拷锟紹(y锟斤拷ng)一些锟斤拷锟紽锟斤拷锟杰時(sh锟斤拷)锟斤拷锟斤拷锟紹(y锟斤拷ng)液锟斤拷锟斤拷锟斤拷锟剿讹拷N锟斤拷锟斤拷元锟斤拷锟斤拷锟斤拷锟戒方锟斤拷锟铰ｏ拷锟斤拷锟斤拷植锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷俚锟斤拷x锟斤拷()
锟斤拷锟斤拷锟絰锟斤拷K+Mg2+Ca2+NO3-H2PO4-SO42-Zn2+
锟斤拷锟斤拷锟斤拷锟紹(y锟斤拷ng)液锟斤拷龋锟絤.mol/L锟斤拷10.251210.251
锟斤拷锟斤拷A.Zn2+B.SO42-C.Ca2+D.H2PO4-
锟斤拷锟斤拷3锟斤拷锟斤拷锟斤拷元锟斤拷锟斤拷指該元锟斤拷占锟斤拷锟斤拷锟絯锟斤拷锟斤拷锟斤拷锟侥ｏ拷锟斤拷
锟斤拷锟斤拷A锟斤拷1/100锟斤拷锟斤拷B锟斤拷1/1000锟斤拷锟斤拷C锟斤拷1/10000锟斤拷锟斤拷D.1/100000锟斤拷锟斤拷
锟絚(di锟斤拷n)锟斤拷锟斤拷锟絛锟斤拷http://files.eduu.com/down.php?id=239779
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