}Ŀ?q)WƼwˇ(ji)g꼉(sh)W(xu)СM΄(w)ǜyW(xu)УUABĸUǰ_Aϵc(din)C̎yU픶AǞ45Uķߵ_Aµc(din)F̎yU픶AǞ60֪_ĸ߶BE1c(din)Cĸ߶CD3ף_ACF½Ǟ30c(din)EFDͬһlֱUABĸ߶ȣӋY(ji)_0.1ף(sh)(j) 1.41
1.73
ĿД(sh)W(xu) Դ }ͣ
}Ŀһл܇(jng)^һlL300Ҫ20ĕrgһKֱ°l(f)ڻ܇ϵĕrg10룮@л܇Lȣ
СȽ(j)W(xu)(x)Q(yng)Æ}Ľ(jng)(yn)憖}M(jn)̽СȽ̽^̣Ոa(b)ɣ
O(sh)@л܇Lxô
1܇^(jng)^µ܇β(jng)^܇ߵ· @Εrg(ni)܇ƽٶ /룻
2܇^M(jn)܇βx_܇ߵ· ף@Εrg(ni)܇ƽٶ /
3܇(jng)^ºͻ܇ͨ^ƽٶȵP(gun)ϵ
4ɴ˿г̲@л܇LȣՈз⣩
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ĿД(sh)W(xu) Դ }ͣ
}ĿϿhl(f)չr(nng)I(y)ȫ조֮ͥĝع@_ĴġͿfʳɫu(y)翗ȥ_ץסC(j)l(xing)(chung)I(y)Ͷ20fԪ(chung)kr(nng)Ҙ+סޣһrgջͶY80%вס2߀1fԪ
1ȥԓr(nng)ҘסfԪ
2_ްȥIJȫ^m(x)ͶYO(sh)خa(chn)Č(sh)wNۺ;W(wng)NĿڽӛ߲LrfA(y)Ӌסȥ10%Lخa(chn)N۵׳ջͶY⣬߀@ò10fԪļՈخa(chn)NжfԪ
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ĿД(sh)W(xu) Դ }ͣ
}Ŀώ˽W(xu)ڼҵxrSC(j){(dio)20W(xu)ijһxСr(sh)wry(tng)Ӌ£
xrg | 2 | 2.5 | 3 | 3.5 | 4 |
W(xu)˔(sh) | 1 | 2 | 8 | 6 | 3 |
tP(gun)@20W(xu)xСr(sh)f_ǣ
A.(sh)8
B.λ(sh)3
C.ƽ(sh)3
D.0.34
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ĿД(sh)W(xu) Դ }ͣ
}Ŀ֪DRtACBACB=90c(din)DABc(din)c(din)ECDc(din)^c(din)CCFABAELc(din)F
1CADEաFCE
2DCF=120DE=2BCL
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ĿД(sh)W(xu) Դ }ͣ
}Ŀ֪Dʾƽֱ(bio)ϵxOyC=90OB=25OC=20c(din)M߅OCϵһc(din)cc(din)OCغϣ^c(din)MMNOBBCc(din)N
1c(din)C(bio)
2(dng)MCNLc߅OMNBLȕrCML
3OBǷc(din)QʹáMNQֱՈ˕rMNLڣՈfɣ
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ĿД(sh)W(xu) Դ }ͣ
}ĿijL(fng)^(q)TƱraԪ/F(tun)wƱҎ(gu)10(10)10^10˲ִb.O(sh)F(tun)wοTƱM(fi)ÞyԪycx֮gĺ(sh)P(gun)ϵDʾ.
(1)գa_______b_________.
(2)Ո(dng)x10rc
֮gĺ(sh)P(gun)ϵʽ
(3)(do)СAΈF(tun)ԓ^(q)TƱM(fi)2720Ԫ(do)βُITƱAΈF(tun)ж
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ĿД(sh)W(xu) Դ }ͣ
}Ŀij_l(f)˾a(chn)960®a(chn)ƷҪӹͶЈF(xin)м҃ɂSӹ@a(chn)Ʒ֪SΪ(d)ӹ@a(chn)ƷҹSΪ(d)ӹ@a(chn)Ʒ20ҹSÿȼSӹ8a(chn)Ʒ˾踶SӹM(fi)ÿ80ԪҹSӹM(fi)ÿ120Ԫ
1҃ɂSÿܼӹټ®a(chn)Ʒ
2˾ƶa(chn)Ʒӹ£ÿS҆Ϊ(d)ҲɃɂSͬrڼӹ^˾һ̎ÿ쵽SM(jn)мg(sh)ָ(do)ؓ(f)(dn)ÿ5Ԫ`a(b)M(fi) Ո˾xһNʡrʡXļӹf
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