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dBʳίʲô
r(sh)g2014-1-4 20:18:50 dBt(y)Ժ
(du)dBʳίʲô@(g)}˂eđ(yng)ԓ˽һ(du)҂ҁfdBܲʲôeļ߀Ҫ˂עκһ(g)ܕ(hu)l(f)Լϵ˂ҪB(yng)õ(x)T҂ҪԔ(x)ĽBһ°dBʳίʲô
ʳίdBƫoίdBҎ(gu)ί߀DZ횵ճҲҪעʳʳһЩSصʳͿdBˎĸoίdBdBʳίʲô?
ʳίdBƫ
1̎M1ֲֻ}m
÷Mȥֲ}δl(f)r(sh)1γ꣬B7
ΣdB
2̎S100ˣ6010m
÷Sˮ֭dBʳίʲô?ȥӰm{(dio)ζ3η꣺
3̎r10ˣ1250ˡ
÷ˮȡ֭ˮRǰr֭С1γ
ΣdBl(f)
4̎M1ֻ20dBʳίʲô?ɽˎ30}m
÷Mȥ^צϴЉKͬɽˎ}ˮM2γԡ
ΣdBgЪڡ
5̎X215ɽˎ30}im
÷XȥĤcɽˎӾ}i{(dio)ζ12γ
ΣdBl(f)gЪ
6̎ɽ203ɰ10
÷ɽˎɣcɰм(x)ĩ_ÿ3ÿ3Ρ
ΣdB
7̎˅ĩ55Ƭ100
÷ϴˮ˅ĩʳÿ23
ΣdB
dBһNԼίҲҪĕr(sh)gίdB^ʹһЩʳίdBƫoίƫҲһᘌ(du)Եᘌ(du)dBl(f)dBgЪڵ
(jng)^Ԕ(x)ĽB֮҂ґ(yng)ԓ֪dBʳίʲôˣʳ(du)˂fDZزٵκһ(g)˶x_ʳԼ߸Ҫעʳˣ(du)ڰdB҂ҿܕ(hu)кܶĆ}(du)ڰdBκΆ}ֱԃ҂Čңҕ(hu)oMĻش
аdBĆ}Ո(qng)ԃھҞ
һƪ: dBҪôίЧ
һƪ: dB(yng)ԓôίܺ