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ġFOSzȡСġø(f)ϾSBˎȡ13NUGFL
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1B(yng)ÿ^iɹ(ji)s40-50ȫr,ͬȗlͬwسڵiǰ7-10ڣÿ^iɶӯ80-100Ԫ
2ʹ3-5죬ʳ@ӣʹ5-7ųļSҼāSɫl(f)δϺw@p60%-80%
3ƽcȺA(y)cϡaθcԼB(yng)ֳh(hun)A(y)N(yng)Լİl(f) ע헣1ɲøƄÓù(yng)ˎ
2ƷoԏꎛͨL(fng)̎