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        1. P(gun)(x)}
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          Ŀ Դ

          }ĿijƼСMO(sh)Ӌ(j)DʾĶ܇D(zhun)·ģԭDͨ(yng)ָʾԓָʾ(hu)l(f)⣩΢l(f)⣩Wq·Դ늉12V׃ָʾҎ(gu)12V 6WR0鶨ֵD(zhun)D(zhun)ָʾΪ(d)Wqr(sh)늉ɶˌ(sh)H늉Sr(sh)g׃Ҏ(gu)D21ʾO(sh)ָʾ費׃늴FȦFֵӋ(j)

          1ָʾ

          2D(zhun)_P(gun)Sc|c(din)34ͨr(sh)ָʾl(f)B(ti)ͨ^F

          3D(zhun)_P(gun)Sc|c(din)23ͨr(sh)ָʾ΢l(f)B(ti)µČ(sh)H늹

          4D(zhun)_P(gun)Sc|c(din)45ͨr(sh)ָʾWq1minĵ

          鿴𰸺ͽ>>

          Ŀ Դ

          }Ŀ

          E£ƽy˱ӵ|(zh)100gbMˮ|(zh)180gٜyСX|(zh)54g@(g)СXppķM(jn)bMˮıyÿ|(zh)204g

          Ո(qng)Ӌ(j)Сwe

          Ո(qng)Ӌ(j)СXܶȣX=2.7103kg/m3ˮ=1.0103kg/m3

          ДԓXǷǿǣIJж

          鿴𰸺ͽ>>

          Ŀ Դ

          }ĿDʾ̽c늉P(gun)ϵ(sh)(yn)Դ늉4.5V̞00.6A늉̞03Vֵֵ5(dng)׃ֵ20

          1ڈDùP挧(do)(sh)(yn)·B

          ____

          2]_P(gun)ǰ(yng)(dng)׃ĻƬڈD________ˣ

          3]_P(gun)Ƅ(dng)Ƭӛ늉ʾ(sh)M(jn)жΌ(sh)(yn)LƳIUDDʾ(j)DóY(ji)Փһr(sh)ͨ^(do)w(do)wɶ˵늉________

          4˱CԪȫ]_P(gun)Ƅ(dng)Ƭ^(dng)׃ֵ׃________

          5ԓ·̽P(gun)ϵr(sh)늉ʾ(sh)ʼK2VQɌ(sh)(yn)QĶֵֵܴ________

          鿴𰸺ͽ>>

          Ŀ Դ

          }Ŀ̽(dng)ܺ໥D(zhun)Č(sh)(yn)УDʾČ(sh)(yn)bãü(x)һ(g)|(zh)1mСҒСλBλAoֹጷС^СABC^еĸ߶Ⱥٶȵ׃yСABC(g)λÕr(sh)(dng)ֵܺܵĶ@һ^Є(dng)֮ܺgD(zhun)(sh)(j)ʾ

          \(yn)(dng)^̻λ

          A

          AB

          B

          BC

          C

          (dng)EkJ

          0

          4.98

          p

          0

          EPJ

          5.00

          p

          0

          4.97

          1СڈDеCλܵ______ (g)ã

          2Č(sh)(yn)пԿСAB^ٶȲ߶Ȳཱུͣ@(g)^uD(zhun)______ D(zhun)^C(j)еup@ҪСܵ______ ɵģ

          3ڌ(sh)(yn)Q|(zh)2mСl׃ôС_(d)BλÕr(sh)ęC(j)е______ |(zh)1mС_(d)BλÕr(sh)ęC(j)еܣxڡСڡ򡰵ڡ

          鿴𰸺ͽ>>

          Ŀ Դ

          }ĿͬW(xu)̽ܗUƽlČ(sh)(yn)Ո(qng)Ѓ(ni)ݣ

          1DʾҪʹܗUˮƽλƽɌܗU˵ƽĸ________x{(dio)(ji)

          2Dʾ{(dio)(ji)ƽ(c)^a(c)Ac(din)ÏɜyӋ(j)DδܗUʹˮƽλƽڜyۣɜyӋ(j)ڸܗUķ(yng)________^У(dng)ɜyӋ(j)ʾ(sh)_(d)ԲʹܗUˮƽƽIJ________һlɣ

          3ijͬW(xu)yһM(sh)(j)͵ó(dng)(dng)=ĽY(ji)ՓJ(rn)ԓͬW(xu)________x

          4Ո(qng)O(sh)Ӌ(j)һ(g)ӛ䛌(sh)(yn)(sh)(j)ı

          鿴𰸺ͽ>>

          Ŀ Դ

          }ĿijͬW(xu)ƽRc(din)(sh)(yn)r(sh)һKQֱһֱߵȡɶεLϞTABһǰһQֱc(din)ȼǰϞTA۾M(jn)^Dʾڴˌ(sh)(yn)У

          (1)ֱߵDZڱ^c_______P(gun)ϵ

          (2)ɶεLϞTǞ˱^c_______P(gun)ϵ

          (3)ȥϞTBλϷһt____(ܡ򡰲ܡ)յϞTAĠT@fƽRɵ____

          (4)(yng)x_____оƽRc(din)(ƽRƽ岣)

          (5)ϞT򿿽RķƄ(dng)ôĴС_____(׃׃С򡰲׃)

          (6)DС܊M(jn)Ќ(sh)(yn)r(sh)RҲ^쵽ԼôRпԼ(yng)Dе______(̖(ho))

          鿴𰸺ͽ>>

          Ŀ Դ

          }ĿyС늹Č(sh)(yn)(sh)(yn)ģԴ늉4.5V(bio)2.5VС늉(dng)׃201A_P(gun)һ(g)ֵ(g)102030(do)

          1Ո(qng)ùP挧(do)D·BҪ󣺻(dng)׃ƬƄ(dng)r(sh)С׃ __

          2·BӺú]_P(gun)Ƅ(dng)(dng)׃ĻƬM(jn)жΌ(sh)(yn)Δ(sh)(j)ӛڱ(j)(sh)(j)Сݵ~ʞ_______W

          3(sh)(yn)Y(ji)СAͬW(xu)M(jn)һ̽cP(gun)ϵСȡºD·RλΓQеĶֵ裨102030Ⱥ·鱣Cÿζ܌Ķֵɶ늉{(dio)2.5V(yng)·ٴ“(lin)һ(g)ֵ______________R@

          鿴𰸺ͽ>>

          Ŀ Դ

          }ĿDʾԴ늉U12VСL(bio)С9V8.1W֘RijNֵRcܵĉFɷDʾRϷһFƷAAϷ̶һ늴FB侀Ȧ費Ӌ(j)z㶨׃gȡ10N/kg

          1(dng)_P(gun)Sbr(sh)늴FB¶˞ň_____O(dng)_P(gun)SaA|(zh)r(sh)Сݵ_____

          2(dng)FƷA|(zh)2kg_P(gun)Sbr(sh)늉ʾ(sh)8Vt˕r(sh)ֵٚW_______늴FB(du)FƷAţ________

          鿴𰸺ͽ>>

          Ŀ Դ

          }ĿDʾС(qing)F25Nˮƽ10s(ni)ͨ^݆M|(zh)20kgܶȞ2.5103kg/m3wʯKAˮƽƄ(dng)2m֪ʯKܵĦ0.3gȡ10N/kg

          1KĩƄ(dng)ٶȡ

          2ʯK(du)ˮƽĉ(qing)

          3ԓ݆MęC(j)еЧʡ

          4Ĺ

          鿴𰸺ͽ>>

          Ŀ Դ

          }ĿСÈDʾ·y~늉2.5VСݹ

          1Ո(qng)ùP挧(do)ɈDЌ(sh)(yn)·B

          ______

          2]_P(gun)l(f)F(xin)oՓ{(dio)(ji)(dng)׃ĻƬСݶ늉oʾ(sh)СҁһõČ(do)һBԴؓ(f)Oһ|ABCӾl(f)F(xin)(dng)|BCӾr(sh)Сݶl(f)·ֻһ̎ϣt·Ͽ_____

          3ųƄ(dng)(dng)׃ĻƬ(dng)늉ʾ(sh)2.2Vr(sh)ʾ(sh)Dʾ˕r(sh)СݵĹʞ_____WҪyСݵ~ʣ(yng)Ƭ_____x󡱻ҡƄ(dng)

          4С(j)yĶM(sh)(j)IUDDʾY(ji)l(f)F(xin)Dֱ@ͨ^Сݵcɶ˵늉_____xɡ򡰲ɡ@?yn)?/span>_____

          5(sh)(yn)Y(ji)ώ늉һ(g)ֵR0Ķֵ裬O(sh)Ӌ(j)Dʾ·ҪyСݵ~ʡՈ(qng)Ќ(sh)(yn)E

          ٺ_P(gun)Ƅ(dng)ƬPʹA2ʾ(sh)_____x˕r(sh)A1ʾ(sh)I

          Сݵ~ʱ_(d)ʽ飺P_____֪͜yʾ

          鿴𰸺ͽ>>

          ͬ(x)(c)