[今日更新]安徽省2023-2024学年度(上)期末八年级学业结果诊断性评价.物理试卷答案

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[今日更新]安徽省2023-2024学年度(上)期末八年级学业结果诊断性评价.物理试卷答案试卷答案

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S.Howdidtheauthor'shusbandsupportthefamily?A.Bystartingagarage.C.Bydeliveringgoods6.Howdidtheauthorfeelwhenshesawthebasket?B.Bysellingfooddoortodoor.A.Shewasannoyed.D.ByworkingasashopssistC.Shewasterrified.B.Shewasastonished7.Whatmaybthebesttiteforthetx?D.Shewasrelieved.A.AhelpinghandintimeC.AtaleofpotatoesB.AstrugglingyoungcoupleD.ArewardfromastrangerCWhileteamaybeKenya'slargestexport,anewdrinkisbecomingpopularincentratcoffeemadewithasplashofcamel'smilk.AtCJ'sRestaurant,apopularcafeindowntownNairobi,managerOmerSharffhasshift.WherethedemandforcamelmilkinthepasthadlargelybeendrivenbythelocalSomcmhhit,todaymoreandmoretmThoueiiscmacrotheworldinhMiddlefsiandAustraliaipopularityinEastfroButwiderinterestbothregionallyandloballyhasbegleadingsometocallthemilk"whitegold".CmelilkotheinterationlmarketisincrediblyiveDdfortheMpalaResearchCenterlocatedontheLaikipiaPatea"Halfaliteroffinishedmilkgoesfor$10to20,hesays,comparedtoconventionalwhichsellsforabout50centsperhalfliterintheUS.TheAfricancontinentishometo80%oftheworld'scamels,withabout6%iviAfricaalone.Thoughongtimedailydrinkforsomeintheregion,camelmilkkspreadouetomarket.Instead,themilkismostoftenfoundininfomalthecountry.thdrierweatherinlargepatsofeastemAfriea,camelshvriendlyalternativesourceoffood.Unlikecowsandsheep.camelswithoutwater..“providesahedge(防范措施inthedryweather.”statesHewell.mwlietoproducemilk.icomaeraonSharitesablishmentslikeCI'sRespeoplefromgyminstructorstohealthnutritionistssayingthey'vefoundalotoferabouthecmeilkditbeeftshesays'sanewchangeforpeopleindowntouA.Theybegintodrinkcoffee.C.CamelmksepacingofB.TheybeginmD.Thedemandfor

14.(3分)如图所示,这是航天员在空间站用毛笔写下“理想”二字的场景。书写过程中墨汁附着在毛笔上并没有四处飞溅,从分子角度而言,这是因为分子间有。空间站中使用毛笔而不是铅笔,原因是用铅笔写字时,飞溅的铅笔芯颗粒(石墨材料)属于(选填“导体”或“绝缘体”),进入电器会导致电路发生故障。

身者者8.“甩绳”运动可以提升健身者的爆发力、心肺耐力等.如图所示,某根绳子上一列简谐横波沿寸的像,下列说法正确的是x轴传播,图甲为t=4s时的波形图,P、Q是绳子上的两个质点.图乙为质点P的振动图^∘Q简谐横波沿A.该简谐横波向x轴正方向传播xB.该列波的波速为2.5m/s质点Q的平衡位置坐标为xQ=352mD.当t=173;s时,P、Q两质点速度相同

3.某氨氖激光器的发光功率为18mW,,能发射波长为632.8nm的单色光,则(取普朗克常量h=6.610^-34Js,,真空中光速c=310^8m/s)A.一个光子的能量为33.1310^-19JB.一个光子的能量为3.1310^-20JC.每秒发射的光子数为5.7510^14个D.每秒发射的光子数为5.7510^15个