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That's not , it is .A. ours, mine B. your, mine C. yours, her D. yours, my
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10分AmazingChinaisa90﹣minutedocumentaryaboutthedevelopmentofChina.Manypeoplehavewatchedit.Weaskedsomestudentshowtheylikedthismovie.Herearetheiropinions. ▲ThedirectorWeiTiemadethissuccessfulmovie.ItshowsthatChinahasprogressedrapidlyinthepastnearly70years. ﹣﹣LiLin ▲Thismoviedrewapictureofcommonpeople'sgreatwork.I'mproudofourcountrybecausealltheChinesetrytoachieveChinesedream. ﹣﹣XuWei ▲Inthisdocumentarywesawthelongestsea﹣crossingbridgeintheworldHongKong﹣Zhuhai﹣MacaoBridge.NowChinaalsohaslongerhigh﹣speedrailnetwork高铁网thananyothercountry. ﹣﹣LiuYang ▲ThefilmhelpedpeopletoknowChinabetter.Thestoriesinthemovietouchedmyheartdeeply.FromthenonIdecidedtoworkharderthanbefore. ﹣﹣HuangLei 1WhatkindofmovieisAmazingChina 2Whoisthedirectorofthismovie 3WhyisXuWeiproudofChina 4Whichisthelongestsea﹣crossingbridgeintheworld 5DidAmazingChinatouchHuangLei'sheart
1分Accordingtothenoticeguestsatthishotelusethesportscenteratnoextracost. A.can B.should C.must D.need
20分假如下面是你们班教室里的照片墙墙上记录了中考前学习和生活的点点滴滴以及考前老师的温馨提示.忘不了备战中考时充实而快乐的时光请你以PreparationforHighSchoolEntranceExam备战中考为题写一篇80﹣100词的短文. 要求1请阐述图中信息可适当发挥 2文中不得出现真实的人名校名和地名 3字迹工整语言流畅表达正确. PreparationforHighSchoolEntranceExam
关于物体的内能下列说法正确的是
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甲数是乙数的1.5倍则甲数和乙数的比是．如果甲数是18那么乙数是．
判断下列各题中的两个量是否成比例关系．若成成什么比例关系 1每小时加工零件数一定加工时间和加工零件总数． 2从甲地去乙地已行的路程和未行的路程． 3圆的直径和周长． 4已知＝xy≠0x和y．
2019年2月国产科幻电影流浪地球的上映引起了人们对天体运动的极大兴趣．设想有质量为m的卫星绕质量为M的星球做匀速圆周运动运动半径为R以卫星距该星球中心无限远处势能为零当卫星距该星球中心距离为r时引力势能G为引力常量不考虑其它星体对卫星的作用则卫星要脱离该星球到无限远处去至少需要增加的能量为
一个足球的表面是由32块黑色白色的皮块缝接而成的黑色白色皮块的数量之比是35．黑色白色皮块各有多少块
1分It'sreportedthemedalsforthe2020OlympicGamesinTokyofrom100%recycledmaterial. A.aremaking B.havemade C.ismade D.willbemade
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10分HaveyoueverbeentoThailandForthousandsoftouristsfromChinathissmallcountryinSoutheastAsiaisanexcellentplaceto1.Bangkok曼谷isthe2ofThailand.There aremanytemples寺庙inBangkok.Youcan3somemonks僧侣walkingalongthestreets. The4timetovisitThailandisfromApril13thto15thbecauseitisthetimeof5.Peoplesingdanceandgoonthestreetsto6waterateachother.Thelocalpeoplethinkthatwatercanwashawaybadthingsandbringgoodluck. Ontheonehandbeachesandsunshinearealotoftravelers'choices.Inthiscountrytherearemanyhotelsfacingtheseasoyoucanhavefunonthebeachor7inthesea.OntheotherhandThailandisagoodplacetotry8food.Youcaneatseafoodatanyrestaurantorbuysometropical热带的fruitsuchasmangoesanddurians榴莲at9prices. IfyougotoThailandyouwon'tforgetto10anelephant.Theelephantisasymbolof Thailand.It'sbelievedthatThailandisoneofthemostfascinatingtravelplaces. 1A.takeaholiday B.takethebus C.takerisks 2A.world B.countryside C.capital 3A.hear B.see C.listen 4A.most B.worst C.best 5A.theWaterFestival B.Christmas C.Thanksgiving 6A.look B.throw C.arrive 7A.swim B.walk C.lose 8A.terrible B.sour C.delicious 9A.cheap Bexpensive C.low 10A.hit B.ride C.drive 1A.takeaholiday B.takethebus C.takerisks 2A.world B.countryside C.capital 3A.hear B.see C.listen 4A.most B.worst C.best 5A.theWaterFestival B.Christmas C.Thanksgiving 6A.look B.throw C.arrive 7A.swim B.walk C.lose 8A.terrible B.sour C.delicious 9A.cheap Bexpensive C.low 10A.hit B.ride C.drive
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如图所示直线a与四分之一圆弧b分别表示两质点AB从同一地点同时出发沿同一方向做直线运动的v﹣t图象当B的速度变为0时A恰好追上B则当AB速度相同时B的加速度大小为
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一放在光滑水平面上的平板车高为0.2m质量为3kg平板车停靠在一光滑的四分之一圆弧轨道旁平板车上表面刚好与圆弧轨道的最低点相切AB两物块分别位于平板车的左端和圆弧轨道最低点A的质量为1kgB的质量为2kg两物块之间有一个小炸药包炸药包爆炸可将E＝3J的能量转化为两物块的机械能爆炸时间极短物块B在圆弧轨道上向上运动走过的轨迹对应的圆心角θ＝60°．物块A滑上平板车已知平板车长度L＝m物块与平板车间的动摩擦因数为μ＝0.2圆弧轨道的半径为R＝0.1m重力加速度为g＝10m/s2． 求1炸药包爆炸后A的速度大小 2物块从平板车的右端滑离落到地面上时离平板车右端的水平距离
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解比例 2x＝1.21.8 x＝ ＝
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