4aӺY(du)Һwἃʲô?
ߣͬdf(wn) g[ l(f)r(sh)g19-04-15
4AӺYһNAٹX}ˮNH3H2S̼C2H5OHC2H6C2H4Rֱ4AķӡV(yng)ښwҺwĸҲijЩwҺwľƺἃ(du)ˮxܸκ
4AӺYǼеÿһ(g)ԭӶăɂ(g)w@NY(ji)(gu)γ˿ɞ(yng)xӺˮռ(j)ĴѨ@Щ(yng)xӺˮ^Ƅ(dng)ԣM(jn)(yng)xӽQͿÓˮ4AӺYxӽQڎXxӵĹǼM(jn)еÿһ(g)Xxһ(g)ؓ(f)늺ɣHԽY(ji)cxҲԽY(ji)(yng)x}VxӿM(jn)ԭ(li)cxռ(j)ĴѨ4AӺYеcxQ(li)----4AӺYеcxӿM(jn)xӽQcӲˮеCa2+Mg2+xM(jn)нQĶ_(d)ܛˮ|(zh)Ŀ
4AӺYY(ji)}VxӵٶȱccVxӵĽY(ji)^4AӺYɌˮҺкؽxPb2+Cd2+Hg2+ܺٳȥ(du)ˮ|(zh)ʮҪx
ă(ni)ӺY^c(din)cվo(w)P(gun)!
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