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        1. Ӣҽ̾W(wng) > > }ĿԔ

          }Ŀij СMǰƏS죬ͬW˽⵽ư׾ȰѰl(f)͵ļZʳľƾľƾbҊDʾҪҪ¼ӟᣬ偌Hһ]HcݔͨȻ󡰚ơأע냦ƹޣеİ׾ƵĶȔ(sh)ܸһ㲻ֱãҪcmˮܳP(gun)ИI(y)Ҏ(gu)£׾ƵġȔ(sh)ָ ׾ƾĺ(sh)֪ˮܶȞ ƾܶȞ  ˜ʴ≺ˮķc ƾķc (j)ԇش

          1ԓSa(chn)ÿƿb  İ׾Ƶ|(zh)Ƕǧˣ
          2£ÿƿb  ȡİ׾ƵܶǶǧ/ ]rwe׃

          𰸡
          1⣺}֪39ȡָ20z϶ȕr100ml׾ƾĺ(sh)39mlt50039ȡ׾оƾwe

          Vƾ539ml195ml195cm3ƾ|(zh)飺mƾƾVƾ0.8g/cm3195cm3156gˮ|(zh)飺mˮˮVˮˮV-Vƾ1g/cm3500-195cm3305gt׾Ƶ|(zh)飺mmˮ+mƾ156g+305g461g0.461kg


          2⣺ˮ|(zh)mˮ200gͬt50060ȡ׾оƾwe 300cm3ƾ|(zh) 240gt׾Ƶ|(zh)飺m200g 440g׾ƵܶȞ飺ѣ 0.88kg880g
          (j)ƵĶȔ(sh)ӋˮоƾweӋ|(zh)(j)weӋˮwe|(zh)|(zh)weӋˮܶ.

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          Ŀ Դ

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          l(f)rߜصχl(f)_ĵʲô|@ӸߜصĻ涼Ѹۻ˱ol(f)_ĵͨһˮ׌懊ˮl(f)r҂ǿҵĻ懊ˮİɫF܇v
          wķœԔ(sh)ǧٶȴԽܵĴӕrœĜضȕ_ǧz϶ȣœġJҪͨ^Nʽœ(ni)Ĝضȿ £һʽڷœijЩλÌ(do)ܺcߺͱȟݴĽͨ^@Щϵۻմğݗʽݗܺõ⁺Ͻմɵȏ(f)ϲݗɢl(f)ȥǟgø߷Ӳڸߜحh(hun)µۻl(f)Aֽߴğ
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          C.õط(w)ڵČ(do)ϵy(tng)
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          2l(f)r҂ǿİɫFxˮ⡱Сˮ顱@懊ˮУˮl(f)F(xin)˴ğĶo˵
          3Ќڟgǣ______
          A.l(f)ڴˮ
          B.ƤwCʳƷ朱
          C.ˮƿ(ni)ă(ni)đͿһĽ
          D.ٶ·IJλýƳ

          鿴𰸺ͽ>>

          Ŀ Դ

          }Ŀмס҃ɷNͬƷƵıر˱^@ɷNƷƵıرʢˮrıЧСտƌW̽ij̶_˾w̽}xm?sh)ڿ׃ǰ҃?ni)Mˌ򞣬õһΕrg(ni)ס҃ɷNر(ni)ˮĜضȵČ򞔵(sh)(j)(j)(sh)(j)LƵĈDDʾՈ(j)DṩϢش†}

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          C.ס҃ɷNرıЧһӺ
          3Ո(j)DӋ^е СrҜأ

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          }ĿСȫʧxoֱֹ\ӡ\ӡ_܇܇ͻȻx܇xǰA򡰺󵹡

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          }Ŀ\ӆTҪѼȥȰѹ@fwl(f)a(chn)Ҫаļ܉^m(x)\@

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          Ŀ Դ

          }ĿW늴^֪RԺͻl(f)룺Լܲһĺ_ʼO(sh)Ӌһ·DʾR0M늄әCɵĺ״LCԇԺXøֵٶ߀cڲӰ늄әCr¼һ220V 1000W늟zЧҲSãՈش†}

          1늟zǶ

          2ڈDЮ늟z·ֵ·D늟zķ̖ʾ

          3늟zĵе50%ˮʹضô7minʹٳ؞10ˮضߵ30cˮ=4.2103J/kg

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          }Ŀ܇x܇Rͣ܇

          A. ʧȥT B. БT C. ܵTԵ D. ʧȥ

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          }Ŀ֪ˮıȟݞ4.2103J/(kg)t1kgˮض50CJğ ҂(jng)˾C܇l(f)әCˮˮ@ˮͬlˮ܎^sЧá

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          }Ŀвô≺ǣ
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          ͬԴ