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WW(wng) > иԇ > иԇx~RB

иԇx~RB

l(f)rg:2017-07-26݋׿s

îI(y)WW(wng)Ӎ
     иx~R俼һֱԁDZ^ܠhԒ}ЩJиx~R俼ҪӢZļˮƽЩ˄tJиx~ԽԽ@ɷNe`҂Ԕ˽иx~RЌI(y)~RĜʂϣ
 
    иxҪ֪һcI(y)~R@^Ǻy܌~R
    1.иx~RƫڌI(y)|ԭ@ӣиԇǞ˿ӢZˮƽܷCڴWWI(y)֪R˿ăƫ،WgķxҲĴWnĺ׃xȡڱ~ĕrڌWg~

    2.иxČI(y)~Ryޡ@cҲǺȻиһTӢZˮƽԇֲnjI(y)ԇy^ČI(y)~Rxд_F(xin)ǿăݣ˼Ժ׵ز³eӣIt should be obvious that cetaceans--whales, porpoises, and dolphins--are mammals@OGx}еһԭ@Ԓеcetaceanһ^֌I(y)o豳Ć~ֻҪJRwhalesdolphinsmammals֪cetaceanˮ()@ஔ֪cetacean˼ˡҪӛmammalwhaledolphin@N^õČI(y)~Rcetacean@NƧͣѾڱ@NDĆ~Ǻֵܲõ
 
   3. иxҪ6ϵ~RҪӛõČI(y)~R^ҪѾƧČI(y)~RϣDzиxăиx~R俼ҪȲpҕҲ܁yһͨxıҵ俼cиxͿõMķ֔(sh)

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