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﹣Didyouhurtplayingsoccer? ﹣NoIdidn't.ButmyclassmateMikehurtknee. A.youhim B.yourselfhis C.yourhimself D.yourselfhimself
﹣Howwasyesterday'stalentshow? ﹣Great.Itwasreallya. A.mess B.success C.force D.fiction
﹣AsfarasIknowBeijinghaschangedalotinthepasttenyears. ﹣﹣Yeah.Nowithasbecomeoneofthebiggestcitiesintheworld. A.ancient B.modern C.usual D.quick
﹣﹣﹣Whereisyourfather? ﹣﹣﹣HeAustraliaandheSydneyfortwoweeks. A.hasbeentohasbeenin B.hasgonetohasbeenin C.hasbeeninhasbeento D.hasgonetohasbeento
﹣IheardFredfoughtoveralmosteverythingwithhisclassmates. ﹣﹣Fromthefirstdayofschooltheteachershimdownasatroublemaker A.signed B.marked C.researched D.considered
﹣﹣Whatanicewatch!Howlongyouit? ﹣﹣Forjust2weeks. A.didbuy B.havebought C.willhave D.havehad
﹣Billyouyourbrother.Bothofyouareveryfriendly. ﹣ButsometimesIammoreoutgoingthanmybrother. A.takecareof B.careabout C.carefor D.takeafter
﹣Ithinkittakesalotofpracticetoplaytheviolinwell. ﹣﹣!Practicemakesperfect. A.Mypleasure B.I'mafraidnot C.Icouldn'tagreemore D.Youdon'tsay
﹣Wherewasyourmotherwhentherainstormcameyesterday? ﹣Sheane﹣mailinthestudy. A.wrote B.willwrite C.iswriting D.waswriting
﹣Haveyoudecidedwhichseniorhighschoolchoose? ﹣﹣NotyetIgototheSunshineSchool. A.should B.need C.may D.must
﹣Couldyouhelpmecleanthekitchenthisafternoon? ﹣SorryI.Ihavetotakethepianolessons. A.couldn't B.mustn't C.can't D.shouldn't
昨天这个时候工人们正在拆除那座在市中心的旧大楼.take Theworkerstheoldbuildinginthecenterofthecityatthistimeyesterday.
为减少污染并变废为宝某化学小组在实验室探究工业废水的综合利用设计了以下流程图并完成了回收铜和硫酸锌的实验． 1X的成分为操作Ⅰ需用的玻璃仪器有烧杯玻璃棒和． 2加入B时反应的化学方程式为． 3操作Ⅱ中玻璃棒的作用是．
铜生锈后所得物质为碱式碳酸铜[Cu2OH2CO3]．受热分解生成氧化铜水和二氧化碳反应的化学方程式为充分加热30g含氧化铜的碱式碳酸铜固体．若反应前后固体中铜元素的质量分数之比为56则该反应生成水和二氧化碳的质量之和为g．
MyparentsarecrazyaboutRunningMan.Howaboutyourparents? ﹣﹣mydadmymomlikewatchingIAmSinger. A.Notonlybutalso B.Bothand C.Eitheror D.Neithernor
﹣﹣WillyoufixupthemachineaccordingtotheDavid? ﹣﹣Noproblem. A.instructions B.inventions C.invitations D.importance
﹣Howwasyoursleeplastnight? ﹣﹣Notverywell.Ididn'tfeelverycomfortablebecausethebedwasnotatall. A.certain B.safe C.soft D.thick
﹣Couldyoupleaseteachmetocookrice? ﹣Sorry.Iknownothingaboutcooking. A.what B.why C.how D.which
我们已经把去北京旅游的计划推迟到下周.put WetheplantovisitBeijingtillnextweek.
﹣Didyourfathersayanythingafterknowingtheresultofyourmathtest? ﹣﹣Hesaidnothingbutmeanangrylook. A.beat B.caused C.shot D.dropped
﹣Isthedesertstillbecominglarger? ﹣Yesanditwon'tstoppeoplecandosomethingtoprotecttheenvironment. A.because B.if C.unless D.assoonas
去年暑假我一到上海就迷上了那儿.fall IShanghaiassoonasIgottherelastsummer.
假设你是李明你的朋友Tom是来自美国的交换生请根据要点写一篇关于Tom的基本情况. 1Tom来中国五年了他非常喜欢中国. 2他喜欢中国食物对中国古代的故事也很感兴趣最喜欢西游记 3空余时间喜欢听乡村音乐那会使他想起以前美好的日子 4曾经参观过长城故宫 注意 1词数60﹣80文章开头已给出不记人总词数 2文中不要提及你真实的地名和人名. 参考词汇 ancient古代的 exchangestudent交换生 thePalaceMuseum故宫
﹣Canyouhelpmethoseexercisebooks?Igotdifferentnumbereachtime. ﹣﹣Noproblem! A.carry B.compare C.collect D.count
﹣HaveyoueverQinghaiLake? ﹣Yes.Itherelastmonth.It'squitebeautiful. A.gonetowent B.beentowent C.beentogo
在点燃条件下2.6gC2H2与7.2gO2恰好完全反应生成6.6gCO21.8gH2O和xgCO．则x＝ 化学方程式为．
2017年5月我国宣布首次海域“可燃冰”试采成功．“可燃冰”主要含有甲烷水合物． 1请写出甲烷完全燃烧的化学方程式． 2实验室里加热醋酸钠和碱石灰的固体混合物可制取甲烷请将如图方框中气体的发生装置补画完整．
我班同学彼此相处得很好.get Everyoneeachotherinourclass.
一PauldoyouknowJennyFox? 一DoIknowJenny?Ihersinceshewasborn. A.know B.knew C.hadknown D.haveknown
1862年比利时化学家索尔维发明了氨碱法制纯碱1892年我国化学家侯德榜在此基础上创立了更先进的联合制碱法侯氏制碱法． 1两种方法涉及如下过程向饱和食盐水中先后通入足量NH3和CO2生成小苏打在该溶液中难溶和一种氮肥请写出该反应的化学方程式． 2请从酸碱反应的角度分折在用生产纯碱的过程中为什么要先向饱和食盐水中通入氨气制成饱和氨盐水再向其中通入二氧化碳 3氨盐水吸收二氧化碳后生成的NaHCO3和NH4Cl为什么NaHCO3首先结晶析出
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