(yng)îI(y)W(xu)W(wng)Ӎ
иx~R俼һֱԁ(li)DZ^ܠ(zhng)hԒ(hu)}ЩJ(rn)иx~R俼ҪӢZ(y)ļ(j)ˮƽˣЩ˄tJ(rn)иx~ԽԽ@ɷNe(cu)`҂?c)?x)˽иx~RЌ(zhun)I(y)~RĜ(zhn)ϣ(du)
иxҪ֪һc(din)(zhun)I(y)~R@^Ǻy܌(zhun)~R
1.иx~Rƫڌ(zhun)I(y)|(zh)ģԭ@ӣиԇǞ˿ӢZ(y)ˮƽܷCڴW(xu)W(xu)(x)(zhun)I(y)֪R(sh)˿ă(ni)ƫ،W(xu)g(sh)ķxҲĴW(xu)nĺ(jin)׃(ni)xȡڱ~ĕr(sh)?q)ڌW(xu)g(sh)~
2.иxČ(zhun)I(y)~Ry@c(din)ҲǺȻ?yn)иһT(mn)ӢZ(y)ˮƽԇֲnj(zhun)I(y)ԇy^Č(zhun)I(y)~Rxд_(sh)(hu)F(xin)ǿă(ni)˼Ժز³(li)e(g)ӣIt should be obvious that cetaceans--whales, porpoises, and dolphins--are mammals@OGx}еһ(g)ԭ@Ԓ(hu)еcetaceanһ(g)^(gu)(zhun)I(y)o(w)豳Ć~ֻҪJ(rn)R(sh)whalesdolphinsmammals֪cetaceanˮ()(dng)(dng)@ஔ(dng)֪cetacean˼Ҫӛmammalwhaledolphin@N^õČ(zhun)I(y)~Rcetacean@NƧ(li)ͣѾڱ@NDĆ~Ǻֵܲõ
3. иxҪ6(j)ϵ~RҪӛ(du)õČ(zhun)I(y)~R^(du)ҪѾƧČ(zhun)I(y)~R?yn)Dzиxă(ni)иx~R俼ҪԣȲpҕҲ܁yһͨxıҵ俼c(din)иxͿõM(mn)ķ?jn)?sh)
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2.иxČ(zhun)I(y)~Ry@c(din)ҲǺȻ?yn)иһT(mn)ӢZ(y)ˮƽԇֲnj(zhun)I(y)ԇy^Č(zhun)I(y)~Rxд_(sh)(hu)F(xin)ǿă(ni)˼Ժز³(li)e(g)ӣIt should be obvious that cetaceans--whales, porpoises, and dolphins--are mammals@OGx}еһ(g)ԭ@Ԓ(hu)еcetaceanһ(g)^(gu)(zhun)I(y)o(w)豳Ć~ֻҪJ(rn)R(sh)whalesdolphinsmammals֪cetaceanˮ()(dng)(dng)@ஔ(dng)֪cetacean˼Ҫӛmammalwhaledolphin@N^õČ(zhun)I(y)~Rcetacean@NƧ(li)ͣѾڱ@NDĆ~Ǻֵܲõ
3. иxҪ6(j)ϵ~RҪӛ(du)õČ(zhun)I(y)~R^(du)ҪѾƧČ(zhun)I(y)~R?yn)Dzиxă(ni)иx~R俼ҪԣȲpҕҲ܁yһͨxıҵ俼c(din)иxͿõM(mn)ķ?jn)?sh)
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