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如图，A、B、C三个城市位置如图所示，A城在B城正南方向180km处，C城在B城南偏东37°方向．已知一列货车从A城出发匀速驶往B城，同时一辆客车从B城出发匀速驶往C城，出发1小时后，货车到达P地，...
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据气象中心观察和预测发生于菲律宾的东海面M.地的台风现在已知台风向正南方移动其移动速度与时间的函数图
据某气象中心观察和预测发生于M.地的沙尘暴一直向正南方向移动其移动速度与时间的函数图像如图所示过线段
下图为我国两省会城市位置图读图回答下题如果①城日出12分钟后正好②城日出则这一天两城的日出方位为
正东方
①城为东北方，②城为东南方
东北方
①城为东南方，②城为东北方
据气象中心观察和预测发生于M地的沙尘暴一直向正南方向移动其移动速度vkm/h与时间th的函数图象如
古希腊某地理学家通过长期观测发现6月21日正午时刻在北半球A.城阳光与铅直方向成7.5°角下射而在A
据气象中心观察和预测发生于M.地的沙尘暴一直向正南方向移动其移动速度vkm/h与时间th的函数图像如
①地位于②地的
正南方向
正北方向
东北方向
西南方向
测量定向的标准方向有三种即
正北方向
正南方向
正西方向
正东方向
有关图l中甲乙丙三地相对位置的描述正确的是
甲在乙的西北方
乙在甲的正南方
丙在甲的正南方
丙在乙的西南方
借助太阳的位置用手表可以确定正南方向表面朝上假设北京时间6月22日下午3时北半球中纬度四个城市的地理
据气象中心观察和预测发生于M地的沙尘暴一直向正南方向移动其移动速度vkm/h与时间th的函数图象如
5.据气象中心观察和预测发生于M.地的沙尘暴一直向正南方向移动其移动速度vkm/h与时间th的函数图
小黄从赤道上的某点出发先向正北方向走50千米再向正西方向走50千米接着向正南方向走50千米最后向正东
正东方
正南方
回到出发点
正西方
40°N.纬线上的
B.两地在同一时间杆影的指向如图所示，则可知
点位于A.点的（ ）
A.正东方B.正西方
正南方
西南方
读图图中箭头表示地球自转方向回答1～3题1.图中符合西半球低纬度温带三个条件的是
①地
②地
③地
④地 2.图中④地位于③地的 A.东北方B.西北方 C.东南方D.西南方 3.某人从②地出发，先向正南方向，后向正东方向至③地，其路程约为 A.3330kmB.4200kmC.5000kmD.6600km
建筑物的位置一般以为宜以取得较好的采光条件
东南向
正南方向
正东方向
西南方向
据气象中心观察和预测发生于M地的沙尘暴一直向正南方向移动其移动速度vkm/h与时间th的函数图象如
据气象中心观察和预测发生于M.地的沙尘暴一直向正南方向移动其移动速度vkm/h与时间th的函数图象如
据气象中心观察和预测发生于M.地的沙尘暴一直向正南方向移动其移动速度vkm/h与时间th的函数图象如
如图6所示人们从O.处的某海防哨所发现在它的北偏东60°方向相距600m的A.处有一艘快艇正在向正
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计算2-1+÷=
已知am=3an=2则a2m-n的值为
25分假定你是李华.你在网上得知在你市留学的Larson最近总是失眠你决定给予他帮助.就此请你用英语给他写封电子邮件内容包括: 1.进行安慰; 2.询问失眠的具体原因; 3.约定地点以便当面详谈. 注意: 1.词数100左右; 2.可以适当增加细节以使行文连贯.
8分WhenIwas12yearsoldIalreadyknewthatmyteenyearsweregoingtobetheworstyearsatmylife.Iwasatotaloutsiderbullied欺凌atschool.Ifeltcompletelyaloneinmysmalltown. ButbystartingtodovolunteerworkwhenIwas14Iturnedmyproblemintoapassionforhelpingothers.Theopportunitytopracticekindnessmademefeellikemylifehadagreaterpurpose.ThemorepositiveenergyIsharedthemorekindnessandappreciationIreceived.Irealizedthatmypurposeinlifewouldbetoreachouttopeoplespecificallyteenagersandhelpthemfeellessalone. Booksweremytimefriendsbackthen.Iwassothankfulthattheauthorswrotethosebooks.Thekindnesstheyofferedmewiththeirbookssavedmylife.OneofmybiggestdreamswastobecomeanauthorsoIcouldwritebooksthatwouldhelpotherteenagersthewaythosebookshelpedme. AftersurvivingterribleexperiencesatschoolandathomeImadeachoicetotaketheoptimisticpositiveroadinthenextstepsofmyjourney.MydreamcareeriswhatIamdoingnow.Ihavebeenafull﹣timeauthorofteennovelssince2007andamgratefulforthisamazingopportunitytoreachouttoreaderseverysingleday. KindnesssavedmewhenIneededhelpthemost.Evensmallactsofkindnesscanchangesomeone'slife.Youneverknowwhatsomeoneelseisgoingthrough.Butbypracticingdailykindnessyoubecomeanarchitectofpositivechange. 1Whatwastheauthor'slifelikewhenhewas12 A.Boring. B.Peaceful. C.Unhappy. D.Meaningful. 2Howdidthevolunteerworkbenefittheauthor A.Itmadehimpopularinhistown. B.Ithelpedhimfindthemeaningoflife. C.Ithelpedhimunderstandothers'livesbetter. D.Ithelpedhimfallinlovewithreading. 3Whydidtheauthorchoosewritingashisjob A.Hewasinspiredbyhisteacher. B.Hecouldpasspositiveenergytoreaders. C.Hewantedtosharehisschoolexperiences. D.Hefoundhehadatalentforwriting. 4Whatdoestheauthorsuggestreadersdointhelastparagraph A.Saynotobulliesbravely. B.Inspireotherstomakepositivechanges. C.Treatotherswithkindnessindailylife. D.Learntocaremoreaboutothers'feelings.
如图数轴上表示1的对应点分别为点A点B．若点A是BC的中点则点C所表示的数为 A． B． C． D．
求下列各式中未知数的值|a-2|=
6分EachyearTimemagazinepicksthebestoftheyear'sinventionsthatwillchangehowweliveworkandplay. Aira Forpeoplewhoareblindeverydaytaskssuchaswalkingtoschoolorwashingclothescanbetough.Whati£theycouldborrowtheeyesofsomeonewhocanseeThat'sthethinkingbehindAira.Airaisaservice.Userssendlivevideoesoftheirsurroundingstoanagent.Thisisdonewithspecialglassesorasmartphoneapp.Theagentsarealwaysavailable.Theycananswerquestionsdescribeobjectsandguideusersthroughalocation. 3MSmog﹣reducingGranules Smogisatypeofairpollution.Itcomesfromcarandfactoryemissions.Thecompany3Mhascreatedanewmaterial＞3Msmog﹣reducinggranules微粒whichcanbreakdownsmoggranulesintheair.Thebroken﹣downgranulesarewashedawaythenexttimeitrains.Thegranuleswillhelpreduceairpollution. TheWhillModelCI Morethan3millionAmericansusewheelchairstogetaround.Butmostwheelchairsarehardtomoveonmanysurfaces.TheWhillModelCIisdifferent.Itisanewelectricwheelchair.Itcanclimbobstaclestwoincheshighandmovearoundintightspaces.Thewheelchaircanalsobetakenapartinminutes.Thismakesthedisabledeasytotransport. Allbirds Manyshoepartsarenotenvironmentallyfriendly.Allbirdsistryingtochangethat.ItistestinganewmaterialcalledSweetFoamwhichismadefrompartsofthesugarcane甘蔗plantthatwouldbethrownaway.AllbirdshasstartedusingSweetFoaminalineofflip﹣flops人字拖.Itplanstousethematerialinmoreofitsproductlines. 1WhoisAirafitfor A.Factoryworkers. B.Blindpeople. C.Highschoolstudents. D.Serviceagents. 2What'sthepurposeofdesigningtheWhillModelCI A.Todriveacareasily. B.Toreducetrafficaccidents. C.Toofferthedisabledconvenience. D.Toovercomeobstaclesinlife. 3Whichinventionsareenvironmentallyfriendly A.AiraandtheWhillModelCI. B.TheWhillModelCIandAllbirds. C.Airaand3MSmog﹣reducingGranules. D.3MSmog﹣reducingGranulesandAllbirds.
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若=2=-3则b-a的值是
计算-3a42-a·a3·a4-a10÷a2
计算
计算的结果为
若x³=8则x=
化简---|-3|=
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已知5x-1的平方根是±34x+2y+1的立方根是1求4x-2y的平方根．
计算
若=0则m=
计算
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已知x≠0等于
计算
若分式中的xyz的值都扩大到原来的5倍则分式的值是原来的倍．
计算2×3
计算-+的值是
的平方根是
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高一下学期数学
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高一上学期化学
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A.正东方B.正西方 正南方 西南方
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