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[今日更新]山西省2023-2024第一学期九年级教学质量检测考试.物理试卷答案

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yepeb.hert”的ntee0ehyoucanachieve,Ge推yourall34Whatcanweleam间paragraph7A.MikaelacamefromaskiingfamilyC.MikselstrainedharderthanherbrotherB.Mikaela'smothertaightbertoskifirst.25.4hywerehea加naterKirkDwyer'swor恤cienD.Mikacla'sfatherconchedskiingincolleyesA.Topraisethegoodstudentsinhisschool.B.TostressthegreatimportanceofpracticeC.ToshowMikacla'sdifferencefromocherD.TohighlightMikaela'sreatdevotiontotraining26.WhichofthefollowingwordscanbestdebeMikaela?A.CompetentandsmartC.Aggressiveandoptimistic.B.Confidentandcreative27.Whereisthistextprobablytakenfrom?D.Commitedandself-disciplinedA.AtextbookB.Anovel.C.AmagxzineD.AbrochureMorethan40companiedincudingChinesechip-mkngcompanySemiconductoManufacturingIntemationalCorp,haveestablishedworkingcommirteeonuomotive(elecrmpoftheinbroderpushtodevelopthedometicutchp(花片)industry.Themovecameaslong-timeshortageinautochipshashighlighsedtheimportanceofprocessoinvehicleswhicharegingincreasingymarerandintemet-comctedYangXudongheadoftheelectroniinformondepartmentattheMinistryofIndutryndInformationTechology,saidelectroniccomponentsrepresentedbychipsarethekeyandheartofumotiveelectronicsydroanmprfodfortheinteieofthevdry.China'sautomotiveclectronicsindustrystartedrelativelylate,hasarelativelyhighdegreeofdependenceonimports,andthestandardizationofworkisfallingbehindotherleadingcountries.Meanwhile,duringaglobalshortageofautochips,domestiechipsandcomponentcompaniesarealsobecfinguptheresearchanddevelopmentofkeyproducts.andautomakershavebecomemorewillingtobuyhomegrownautochips.Insuchacontext,thereisanurgentneedtoestablishastandardsystemapplicabletoChina'sautomotivechipandcomponentindustry.guideitshealthyandsustinabledevelopment,Yangadded."Wewillpromotetheestablishmentofasetofmuch-neededautomotivechipandcomponentstandardsassoonaspossible,andspeedupthestandardconstructionprocessMeanwhile,wewillalsoincreasepolicyandfinancialsupporttopromotethesupplycapacityofdomesticnutomotivechipsandcomponents,"Yangadded.ChenDaji,vicepresidentofChinaElectronicsStandardizationInstitute,aprofessionalinstituteforstandardizationinthefieldofelectronicsandITindustryundertheMinistryofIndustryandInformationTechnology,saidwhendraftingtheindustrystandards,suchworkneedstobeguidedbyindustrialneeds,focusonmaintochnicalissues,strengthentheindustrialfoundation,andpromotethedevelopmentofkeystandardsforautomotiveelectronics.28.What'sthepurposeofsettingupacommitteeonautoelectroniccompoentsstandards?A.TopromoteChina'sautochipindustry.B.TosolvethegreatshortageinnutochipsC.Todevelopglobalchip-makingindustry.D.Toboostthecooperationamongcompanies.29.Whatdoesperagraph2mainlyfocusonaboutautochips?A.Itsshortage.B.Itssignificance.C.Itscomponents.D.Itsapplication英语试四着第4页（共8页）

3.如图所示为一拔桩机的设计示意图,绳CDE与绳ACB连接于C点在D点施加竖直向下的力F可将桩拔起。保持CD段绳水平,AC段绳竖直,更省力的措施是A.减小α角,增大β角B.减小α角,减小β角C.增大α角,增大β角大α角

10.如图所示,MN、PQ是两根间距为L且电阻不计的足够长平行金属导轨,左侧弧形部分光滑,侧水平部分粗糙且处在磁感应强度大小为B的匀强磁场中,磁场方向与水平导轨半面夹角为θ,,导轨右端接一阻值为R的定值电阻。一质量为m、长度为L的金属棒,垂直导轨放置,与水平导轨间的动摩擦因数为o现让其从导轨左端高处由静止释放,进入磁场后经时间t停止运动。已知金属棒电阻为R,与导轨间接触良好,目始终与磁场垂直,则金属棒进入磁场区域后()A.定值电阻R产生的焦耳热为2^1mghB.金属棒在水平导轨上运动时所受摩擦力越来越小C.定值电阻R两端的最大电压为Bt22gD.金属棒在磁场中运动的距离为2mRCB^2L^2L^22gA-4g()(-4)

[今日更新]山西省2023-2024第一学期九年级教学质量检测考试.物理