%0 Journal Article
%T £¿£¿£¿£¿£¿£¿£¿£¿£¿£¿£¿£¿£¿£¿£¿£¿£¿£¿
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%J ʳƷ¿Æѧ
%D 2009
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%U http://www.spkx.net.cn/CN/abstract/abstract11484.shtml