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ɽr(nng)ˎҺ˾1979(ԭ˾Q顰ɽʡ\ǵ^(q)I(y)F1995ƺ顰ɽr(nng)ˎҺ˾)LJr(nng)ˎa(chn)cI(y)S30Һ(chung)Ч117|Ԫǚxֲ݄IB(yng)Ԫ~200/ٲݿˮ20%j(lu)\?j(lu)~ˮ()0.5%㹽ˮ75%h(hun)ɝԷۄ50%ɝԷۄٱ(f)33%`1.4%(f)cˮ0.1%ˮ5%ͪ480/30%??ȷ50%?ɝԷۄ0.5%㹽ˮȮa(chn)ƷI(y)a(chn)ӹ؟(z)ι˾(ȻͶYع)˾O(sh)ɽʡ\R⢿hɽr(nng)ˎҺ˾ƌW(xu)|(zh)wϵɽr(nng)ˎҺ˾\ͮa(chn)Ʒ|(zh)@ØI(y)J(rn)ɡgӭWRɽr(nng)ˎҺ˾^ָ(do)͘I(y)(w)ǢՄ