Ї(gu)CDCI(yng)B(yng)cʳƷȫоT Ӣ
҇(gu)ýw“F(xin)ԭʼ˽”(j)B(gu)_·Ƶġʷǰʳ@У(du)Թ(li)ʳ֮ԱJ(rn)@Nʳʽ`ȵʳ(x)TԬF(xin)ڲôYֺđ̴@ӵ“”סȫţ⣬ֻͶS_ܵҰʽ\(yn)(dng)ڽ˕(sh)һܵĿښW(gu)˴ͽ(du)҇(gu)(zhun)Ұl(f)^c(din)——
ԭʼPKF(xin)
1.F(xin)cԭʼ˴ͬ(li)h(yun)M(jn)F(xin)wlh(hun)xԼm(yng)ȶl(f)˺ܴ׃(gu)I(yng)B(yng)ʳf(xi)(hu)l(f)˿·˹ָˮ߲͵|(zh)Ķʳ(li)L(zhng)۵ıC
2.ԭʼ˻òL(zhng)á(gu)W(xu)(li)W(xu)ҿ·ɭʾԭʼ˵ĉdz̕30qg(du)ʯr(sh)˵оԭʼ˵ƽֻ15qֱ1900꣬˵ƽ41qֻ20%ܻ65q(li)W(xu)1983ꌦ(du)ԭʼ˵38(g)(g)wgM(jn)J(rn)оl(f)F(xin)14qµ15ˣ30qµ34050q3ˣ5060qֻ1
3.F(xin)ˉL(zhng)l(wi)M{(dio)Yϱ19001902(gu)˾49.2q194666.7q197672.8q
1975꣬7(g)(gu)ҵċDŮƽ^(gu)75q
1980ձƽ75qŮԽӽ80q
1950꣬˵ƽ51.2q1979Dž^(q)71.84qŮ74.20q
1980Ϻƽ72.78qŮԞ75.31q
S(li)İl(f)չ(li)ƽ(hu)Խ(li)ԽL(zhng)ƽL(zhng)Ҫõˮƽߺ͋׃pٵĽY(ji)(li)ԼĘ(gu)ɞ1900ǰλǷνY(ji)ˡacKXѪYŵڰλ1950ǰλ׃?yu)KYXѪܲ¹ʺ͋׃
yӢ(gu)ţ
1.ܸȾx(chng)ԻiţR¹úuܸȾx(chng)繭x(chng){x(chng)
2.(x)Ⱦ{(dio)70%90%۵ɳT(mn)ϾͿcȾ2007(gu)ij(li)a(chn)I(y)ţȾO157:H7cѪԴcUٻء˳@NţѪc^l(f)ѪCѪ˨ѪСpȲʸߵļ1982(gu)cѪԴcUO157:H7״鱩l(f)ԓ^Ӣ(gu)ôձȶ(g)(gu)al(f)
˂(hu)ӛ1985һ(chng)ţŰ(g)Ӣ(gu)ˎЯţԭwţͿȾȾһЎʮĝl(f)M(jn)չʸ_(d)100%10(li)@NѸӵ(gu)(gu)(i)mʿr(sh)Rɭm20(g)(gu)Wнگţ
ʳ״
|(zh)̼֬ˮI(yng)B(yng)ضɞwṩָ䪚(d)صxмȻֻƼs1.̼֬ˮr(sh)ȫta(chn)ͪw(do)wж2.̼ˮc֬w(ni)D(zhun)3.|(zh)̼֬ˮ̼ˮ֬oɱ⵰|(zh)(dng)(li)ԴǮ(dng)z볬^(gu)ĕr(sh)o(w)Փ(li)֬|(zh)߀̼ˮ(hu)D(zhun)֬ѷew(ni)QԒf(shu)ֻҲD(zhun)֬ѷew(ni)
mȻ“ԭʼ˽”҇(gu)ȱm˵ЗlҪ(qing){(dio)ģ^(qing)r(sh)Ƀͯl(f)˵^(gu)ɕr(sh)ڣҲL(zhng)l(f)P(gun)Ir(sh)ӿ]r(sh)Ч(gu)“F(xin)ԭʼ˽”Ȼ(hu)(du)wyصēpϣL(zhng)ώ_(do)