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如图所示是阳光动力2号太阳能飞机,它是一架长航时、不必耗费一滴燃油便可昼夜连续飞行的太阳能飞机,飞行所需能量完全由1.7万块高效能的太阳能电池板提供.下列说法中不正确的是( )
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全球最大的太阳能飞机阳光动力2号是一款能够在不添加任何燃料的情况下昼夜飞行的飞机.当该飞机在空中水平
动能在减小,重力势能在增大
动能保持不变,重力势能在增大
太阳能电池板工作时,将太阳能转化为电能
太阳能电池板工作时,将电能转化为太阳能
阅读太阳能飞机太阳能飞机①近日一架来自瑞士的奇怪飞机引起了国人的持续关注这架名为阳光动力2号的飞机其
2015•兰州中考读下面文章完成19~22题飞机不喝油也能飞王远阳光动力2号正在进行为期5个月的环球
太阳能飞机①近日一架来自瑞士的奇怪飞机引起了国人的持续关注这架名为阳光动力2号的飞机其翼展达72米但
如图所示是阳光动力2号太阳能飞机它是一架长航时不必耗费一滴燃油便可昼夜连续飞行的太阳能飞机飞行所需
机翼上的电池板将太阳能转换成化学能
太阳能飞机以太阳能为能源,它在运行中不存在环境污染.噪声污染
飞机在向上飞行的过程中,受到的大气压强逐渐降低
机翼做成上凸下平的形状可以减小体积,减小空气阻力
飞机不喝油也能飞阳光动力2号正在进行为期5个月的环球之旅这架全球最大的太阳能飞机自3月初在阿联酋首都
2015届贵州遵义中考太阳能飞机①近日一架来自瑞士的奇怪飞机引起了国人的持续关注这架名为阳光动力2号
阳光动力2号太阳能飞机是一架长航时不必耗费一滴燃油便可昼夜连续飞行的太阳能飞机飞机上的太阳能电池是将
世界上第一架使用太阳能环游世界的飞机——阳光动力2号于当地时间2015年3月9日7点12分从阿联酋首
BDS
RS
GPS
GIS 2.关于影响“阳光动力2号”飞行的说法,正确的是 A.天气变化对飞行没有影响 B.太阳辐射对飞行影响很大 C.太阳活动不会干扰飞行 D.大气环流不会影响飞行
飞机不喝油也能飞王远阳光动力2号正在进行为期5个月的环球之旅这架全球最大的太阳能飞机自3月初在阿联酋
阳光动力2号太阳能飞机是一架长航时不必耗费一滴燃油便可昼夜连续飞行的太阳能飞机飞机上的太阳能电池是
如图所示为世界上最大的太阳能飞机阳光动力2号.飞机机翼表面呈明显的弧状结构可使飞机在运动过程中机翼上
阳光动力2号是全球最先进的太阳能飞机它在航行时无需燃油其动力装置由机翼上的太阳能电池板电动机等组成太
2015年3月全球最大的太阳能飞机阳光动力2号如图所示开始首次环球飞行途径我国重庆和南京两个城市此行
如图所示的是世界上最大的太阳能飞机阳光动力2号它于2015年3月31日抵达重庆.太阳能是一种能源选
16届江苏省无锡市惠山区2016届九年级上学期第一次月考阅读下面文段完成后面题目飞机不喝油也能飞王远
全球最大的太阳能飞机阳光动力2号是一款能够在不添加任何燃料的情况下昼夜飞行的飞机.当该飞机在空中水平
动能在减小,重力势能在增大
动能保持不变,重力势能在增大
太阳能电池板工作时,将太阳能转化为电能
太阳能电池板工作时,将电能转化为太阳能
由瑞士制造的阳光动力2号太阳能飞机是唯一一架长航时不必耗费一滴燃油便可昼夜连续飞行的太阳能飞机它的
白天需攀升至更高高空飞行
太阳能电池板的作用是将太阳能转化为内能
飞行时,机翼上方气流比下方气流的流速小
它的动力装置选用汽油机
如图所示为世界上最大的太阳能飞机阳光动力2号.飞机机翼表面呈明显的弧状结构可使飞机在运动过程中机翼上
阳光动力2号是全球最先进的太阳能飞机它在航行时无需燃油其动力装置由机翼上的太阳能电池板电动机等组成太
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中国的茶文化历史源远流长通常绿茶是绿色的.除了绿色外三原色中另两种色光是红色和茶壶的盖子上有一个小孔壶中的水便容易倒出来这是利用了的作用突然转动茶杯时发现水中央的茶叶没动这是由于茶叶具有.
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假如你是李华你校将于4月21日下午2点至5点在学校礼堂举行一次主题为中国古诗词鉴赏的读书活动.你校外教Smith一直想了解更多中国传统文化请你用英语给他写封邮件邀请他一起参加.内容包括 1.活动的目的传承中国传统文化 2.中国古诗词特点有韵律语言简洁内涵丰富 3.表达对客人的祝愿. 注意 1.词数100词左右 2.可适当增加细节以使行文连贯.参考词汇押韵rhyme DearSmith Yours LiHua
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InthedepthsoftheFrenchGuianeserainforesttherestillremainunusualgroupsofindigenous土著的people.Surprisinglythesepeoplelivelargelybytheirownlawsandtheirownsocialcustoms.AndyetpeopleinthisareaareinfactFrenchcitizensbecauseithasbeenacolony殖民地oftheFrenchRepublicsince1946.IntheorytheyshouldlivebytheFrenchlaw.HowevertheirremotelocationsmeanthattheFrenchlawisoftenignoredorunknownthusmakingthemintoaninterestingareaoflawlessnessintheworld. ThelivesofthesepeoplehavefinallybeenrecordedthankstotheeffectsofaFrenchmanformPariscalledGin.Ginspentfivemonthsinearly2015exploringthemostremotecornersofthisareawhichsitsontheedgeoftheAmazonrainforestwithhalfitspopulationofonly250000livinginitscapitalCayenne. IhaveaspeciallovefortheFrenchGuianesepeople.IhaveworkedthereonandoffforalmosttenyearssaysGin.I'vebeenabletokeepfirmfriendshipswiththem.ThusIhavebeenallowedtogainaccesstotheirlivingenvironment.Idon'tseeitasalawlessland.ButratherIseeitasanareaoffreedom. IwantedtoshowtheaudienceaphotographicrecordtouchingupontheuncivilizedlifecontinuesGin.Iprefertoworkinblackandwhitewhichallowsmetoshowdifferentspecificworldsmoreclearly. Hisblack﹣and﹣whitepicturespresentaworldalmostlostintime.Thesepicturesshowpeopleseeminglypushedintoaworldthattheywereunpreparedfor.Theselocalcitizensnowhavetobalancetheirtraditionalself﹣supportinghuntinglifestylewiththelifestyleofferedbythemodernFrenchRepublicwhichbringswithitnotonlynecessarystatewelfarebutalsoalcoholismbetrayalandevensuicide. 1WhydoestheauthorfeelsurprisedabouttheindigenouspeopleinFrenchGuiana? A.TheyseldomfollowtheFrenchlaw. B.TheyoftenignoretheGuianeselaw. C.Theyareseparatedfromthemodernworld. D.TheyarebothGuianeseandFrenchcitizens. 2GinintroducedthespecialworldoftheindigenousGuianeseas. A.atourguide B.ageographer C.afilmdirector D.aphotographer 3WhatisGin'sattitudetowardsthelivesoftheindigenousGuianese? A.Cautious. B.Doubtful. C.Uninterested. D.Appreciative.
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一只小灯泡的额定电压为2.0V正常发光时的电阻约为8Ω.小明想测量这个小灯泡的额定功率实验室中有如下器材一个电压表一个电流表一个开关电源A电压为6V电源B电压为3V滑动变阻器规格10Ω2A导线若干. 1为保证实验顺利进行本实验应该选择选填“A”或“B”规格的电源. 2如图是小红测量小灯泡L额定功率的实物电路图不完整请用笔画线代替导线将实物电路图甲连接完整要求滑动变阻器的滑片P向左移动时小灯泡变暗. 3正确连接电路后闭合开关移动滑片发现灯泡L1不亮电流表有示数电压表无示数则故障可能是.更正错误后小明调节滑动变阻器滑片位置直到电压表读数为2.0V小灯泡正常发光此时电流表示数如图乙则小灯泡的额定电流为A小灯泡的额定功率为W. 4完成上述实验后小明打算增加一个定值电阻R0只利用一只电表通过操作开关来测量小灯泡的额定功率.下列图丙中是小明设计的四种不同方案的电路图.其中能够测出小灯泡额定功率的有选填序号.
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如图是探究电流热效应的实验装置烧瓶内装有质量和初温完全相同的煤油铜丝和镍铬合金丝的长度横截面积均相同则下列说法错误的是
某家用电饭锅的铭牌及原理如图.若不考虑温度对电阻的影响及指示灯消耗的电能则 1开关S接位置选填“a”或“b”时该电饭锅中处于加热状态加热时电阻丝的电阻是Ω当实际电压为198V时电饭锅的实际功率是W. 2该电饭锅中处于保温状态时电路中的电流是多少 3用该电饭锅将2kg的水由20℃加热至100℃水吸收的热量是多少水的比热容为4.2×103J/kg•℃.
Whenonemanofferedtotakeawomanstranger'sbabysothatshecouldrestonarecentflightmanypeopleontheplanewatchedit. ItwassotouchingonepassengerAndreaByrdsaid.Sheshotaphotoofthemancarryingthebabyupanddowntheaisle通道andposteditonFacebookwhereit'ssincegoneviralIwasintearsByrdwroteinthepostwhichhasbeensharedalmost100000times.Notbecausehewaswhiteandshewasblack.butbecauseitshowedmetodaythattherearestillgoodpeopleoutthereinaworldfullofevil. TheSouthwestAirlinesflightwasheadingfromMinne﹣apolistoAtlantaonSeptember5.ThemomMonicaNelsonwhoispregnantsaidshehadbeennervousabouttravelingalonewithher20﹣month﹣oldsonLuke.Whenhegrewannoyedandwouldn'trestthemanseatednexttothemsurprisedherbyofferingtohelpshesaid.Hewalkedupanddowntheaisleholdingtheboysoothinghimtosleep. ItwassuchareliefbecauseIwasalittleworriedtravelingwithhimwithoutmyhusbandtheretohelpoutsaidNelsonateacherwholivesinAtlanta.I'mstillverygrateful﹣﹣hewassokind. ShesaidthemansnameisReidandshelearnedthathealsohasasonnamedLuke. Byrdsaidshewasparticularlytouchedbythescenebecauseshehastwochildrenofherownandcouldputherselfinthemomsshoes.Nowtheirstoryhastouchedthousandsofpeopleacrosstheworldremindingpeoplehowpowerfulasimpleactofkindnesscanbe. It'sgoodtoknowtheworldisnotallbadNelsonsaidTherearesomereallygreatpeopleoutthere. 1Howdidthemanhelpthewomanintheflight? A.Hehelpedthebabytofeelrelaxed B.Hegavehisownseattothewoman C.Hecarriedthebabyupanddownintheair. D.HepostedaphotoofthewomanonFacebook. 2WhatwastheresultafterAndreaByrdpostedthephotoonline? A.Themansuddenlybecamesuccessful. B.Somanypeopleweretouchedbythestory. C.MonicaNelsondecidednottotakeaflightagain. D.Theyoungmomandthemanbecamegoodfriends. 3Whatdoestheunderlinedwordsoothingmeaninparagraph3? A.Topleasesomebodytomakehimsleepforlong B.Toeasesomebodytomakehimfeelcomfortable C.Toforcesomebodytobequietandsilentsoon D.Tosingsongstomakehimfeelhappyslowly 4WhichstatementaboutthemanisTRUE? A.Hisson'snameisLuke B.HeiskindtoAndreaByrd C.Hepreferstopostphotosonline D.Heloveshelpingpregnantwomen
2019年3月10日长征三号乙运载火箭成功将中星6C通信卫星送入太空中星6C卫星是一颗用于广播和通信的地球同步卫星图是火箭发射时的场景.下列说法不正确的是
下列诗句中有关光现象的说法正确的是
在相同加热条件下分别对等质量的ab两液体加热如图甲根据测得数据分别描绘出两液体的温度随加热时间变化的图象如图乙.不计热量损失则结合图中信息作出的下列推断正确的是
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