ӢZ(y)иԇע(xing)
1}ҪxC(j)
(j)ijP(gun)Ӗ(xn)C(j)(gu)(dn)Ҋ?yn)иy(c)(yn)Xռ(li)ʩеԿxģ}r(sh)ҲռcC(j)һӻӽԇ}ڽ(jng)^C(j)ģ}(du)(x)IPXW(xu)(x)C(j)չļPy(c)(yn)D(zhun)QЅf(xi)ڙC(j)rģ}(du)협(yng)y(c)(yn)(ji)ĺr̎ģ}cиW(wng)һ(j)xڿǰ@ιҪ25@NȫXC(j)ģ}Ϳ(j)}M(jn)һ(x)A(y)
E[һľCϽ̳һPЃ}cиC(j)Ǹһӵҁ(li)һETS((gu)y(c)(yn)Чg)ٷW(wng)վϵM(fi)}ȫʽ}ʽһHΑB(ti)R(chng)XȫһӵġڽʮԪ@}֮5(hu)ETSиu(png)ˆT(yng)oһ(g)(bo)ָ(dng)ǰĆ}c(din)Koolearn.com@(g)W(wng)վҲM(jn)˃}r(ji)ETSپW(wng)Ҫr(ji)ÿ60Ԫ
2ͻ ɝqҪ
(sh)ȻҪ(qing)Sø߷ֽ^(du)yиy(c)(yn)עؽѓ(j)f(shu)xһͬ쿼ӢZ(y)(Q)Cϲړ(j)f(shu)x@ľֲy(c)(yn)(ni)ֲ(sh)`϶ڿ ֲyȼӴС(du)ԒϤ(sh)L(zhng)(du)ԒL(zhng)Ҫ ̶Ҫ⏊(qing)ڶԒ6}12}͆һЩ(jin)Ԓ}硰LһԢӵijʲôӵġԒ4}MǺ P(gun)(j) Ć}M(jn)д(f)Ҋ ıռһֲСCόxһƪ һƪԅ20(g)иԇļ(j)x ă(ni)M(jn)пY(ji)x BϵһͬʹÜy(c)(yn)׃ӿƌW(xu)ˡK(x)M(jn)翼 ˥ȻҪ}錧(do)(x)r(qing) (x)ڶڃ(ni)Ҳ(hu)бȻM(jn)
E[y(c)(yn)(hu)һЩУ@(chng)(du)ԒԼ(g)W(xu)ƵČW(xu)g(sh)ԶӡETSġиy(c)(yn)ٷָϡ(jng) y(c)(yn)(ni)ݺ}ͶúҲѕе}x
3~R?zhn)(g)(x)
иy(c)(yn)Ҫ~RҪ@MǞxЧڡxн1/3Ę(bio)}ǿ~R}ÿƪ¶4}~Rͬx~x~ஔ(dng)~RȔMԇ
E[~RҪԟo(w)~RҪ@ʾ(li)ǂ(g)ҪҪôֿ֣־_ƴȻ˲©
4W(xu)(hu)ú(jin)Է̖(ho)ӛҪc(din)
иy(c)(yn)XL(zhng)M(jn)o(w)ڿ}Ϯc(din)ӛPӛԿȻҪB(yng)ӛPӛ(x)ͼӛPӛIJΓи~R ? y(c)(yn)ŹֻǶ̶̵Ď犣@һM(jn)пҊ}܉ Ȼt}Ҫļ(x)(ji)ȻҪӛ(li)Sڴ}ĕr(sh)ֲ ҪӛPӛҪW(xu)(hu)ú(jin)Է̖(ho)ӛҪc(din) 6ƪx4ƪvһƪƪL(zhng)Ԟ鱾ӛסе(sh)`ϵKԲՓЧ]ãҪ߅ ߅ӛԒֲĺ4}ҲȫهӛPӛ@}dž ʲôȻD(zhun)(li)SPӛӛúͿԿ˵ĹPӛ(f)ʮа˾e(cu)Pӛڌͬã Ҫc(din)ӛd(li)(du)(yng)c(din)ҳ(li)ҲͲɆ}ˡ
E[ģ(x)һ10ܺܿ옋(gu)ɱһӛPӛkݏȷϼ^¶F(xin)_չ¼^¶F(xin)I(y)(j)»߀ຆ(jin)(j)˵(x)ℓ(chung)һЩ̖(ho)
5(x)_}
@ιҪ(x)Д_r´(f)Ԓ}ڽy(tng)һ(g)ƈ(chng)Ŀ}ٶȼЕr(sh)߀xĕr(sh)˾_ ˣSĔ_Ŀǰ_(x)[rX(f)}ȻҪذѴ(f)f(shu)(li)Ԓǰ}45}60ԿҲҪ(x)һ֮(ni)f(shu)(du)һ(g)}^c(din)(chng)IJĥ̹MZ(y)߉IJ
E[壺ڴ(f)ĕr(sh)ֱȻҪ??_Y(ji)ĵĎc(din)Sپ͕(hu)Xܲe(cu)̹(ni)o߉?jn)?sh)һ͡
6ǰKա
?yn)иǙC(j)ڜy(c)(yn)ϱҎ(gu)Üy(c)(yn)ҪҪW(xu)(hu)ڕr(sh)މ}ȷһƪx20֮(ni)Ԓ(bio)}Ҏ(gu)t45(ni)ɾͱȻr(sh)Ҳһ30犃(ni)ȻҪ(jng)^Xģ}ȫչ(li)Ԓǿ협(yng)
E[ȷԇǶ̶45e(cu)^ˣf(shu)ʲôҲ ʹõČW(xu)(x)C(j)(x)ģ}r(sh)Ҫo˶һ(g)Kաԇ߀ЎͱȻҪ߀Ў犾ͱȻҪˡ
(li)ԴW(wng)j(lu) ؟(z)ăHތW(xu)(x)a(chn)(qun)}Ո(qng)(lin)ϵ҂r(sh)h