用裂项相消法求-查字典问答网
- 一段公路,甲队单独修需15天,乙队单独修需10天.⑴两队每天一共修公路全长的()分之()一段公路,甲队单独修需15天,乙队单独修需10天.⑴两队每天一共修公路全长的()分之().⑵两队
- 给你一个透明玻璃杯,一支铅笔,一块塑料薄片和足够的自来水,选用这集中材料,设计3个物理小实验
- 【eye,seewatchobserve,look,notice的区别,要简炼,】
- 【工程队用3天修完一段路,第一天修的是第二天的910,第三天修的是第二天的65倍,已知第三天比第一天多修270米,这段路长多少米?】
- 【修一条路,第一天修这条路的2分之1还多2千米,第二天修余下的3分之1少1千米还剩20千米】
- 【lessismore翻译】
- 【阅读理解Letussaythereissomethingyoudon'tknowhowtodo.Inthepastifyouweredeterminedtolearnyoumighthavecalledafriendorrelativetakenanightclassorwalkeddowntothelocallibraryforaresearchter】
- 阅读理解。Ithasbeenprovedthatachild’ssocial(交际的)developmenthasadeepeffectonhisprogressinhislessons.Childrenwhohavetroublegettingalongwiththeirclassmatescanendupbehindothersandhaveagreatch
- 初中物理电学小鸟站在高压电线上为什么不会被电到
- Whatschoolyoudoifyouhaveanyoftheseprediction
- 两个工程队修同样的路第一工程队每天修250米修了1000米后第二工程队才开始修路每天修200米第二工程队修了多少天后两个工程队修路的米数相等?(我要老师来回答)(列方程和设句)
- Philadelphiaisacityknownformanythings.ItiswheretheDeclarationofIndependencewassignedin1776,anditwasalsothefirstcapitaloftheUnitedStates.(36)___Itishometonearly3.000mural(壁画)paintedonthesideofh
- One'sattitudeisalwaysimportant.Ifyouarelazyandweakyouwillnevertasteanysuccess.Butifyouare(1),successandhappinesswillbemorelikelytocometoyou.Iloveeatingpersimmons(柿子).Butyoucan'tgetthemuntil
- 【一副扑克牌共54张,其中有红桃、方块、黑桃、梅花四种花色,每种花色都有1点,2点,3点,……,13点的牌各一张.如果要求一次摸出的牌中必有3张的点数是相邻的(不计颜色),那么至少要摸几张牌】
- 请问watch,see,look,表示看的时候有什么区别啊`?谢谢各位
- I'vtgotmanybooksonChinesefood.Youcenborrow_ifyoulikeA.eitherB.oneC.itD.every
- 英语中,如何区分see,watch,look...
- 修一条公路,第一天修了全程的2分之一还多2千米,第二天修了余下的3分之一少一千米,第三天修了余下的4分之一还多一千米,这样还剩下20千米没有修完,求公路全长?
- tomcat7.0.11managerapphostmanager访问错误密码确保无误401UnauthorizedYouarenotauthorizedtoviewthispage.Ifyouhavenotchangedanyconfigurationfiles,pleaseexaminethefileconf/tomcat-users.xmlinyourinstallation.Thatfi
- 【1.Thereisn't___waterleft.Wehavetobuyanotherbottle.A.alotofB.manyC.muchD.lotsof2.Ifyoudon'tlikesugar,___somechocolate?A.whataboutB.whatofC.thatD.thatabout3.There's___cookingoilleftinthehouse,wouldyougotothecorner】
- watchthevideo还是lookatthevideowatch和lookat和see的区别和短语
- 求帮写一篇英文作文,要求如下Forthispart,supposeyouareHanLiaoandyourfriendMr.Harrisonhasgotmarried.Accordingtothefollowingifformation,youarerequiredtowritealetterabout80wordstocongratulatehimonhismarriage.Th
- Ifyou’resecretlyworriedaboutyoursmartphoneaddictionthenthenewNoPhonemightbejustthethingyouneed.Itlooksandfeelsexactlylikeasmartphone,butitdoesnothing.It'sjustapieceofplasticthatyoucancarryaround
- 【secx=?cscx=?】
- 英语翻译
- 英语中原因音素都有哪些
- Besidescalling120,hereiswhatyoushoulddowhennooneisaroundtohelp.Ifyougetlost,youmaystaywhereyoucanbeseenclearlyandtryyourbesttohavearest.Inawideopenarea,makeacolorfulcrossoutofrockstoshow
- 【英语翻译Closeyoureyesforaminute,andimaginewhatitwouldbelikeifyoureceived$1permonthforevery.comdomaininexistence.Sincethereareover30millionactive.com's,andmorethan30,000new.com'sareregistereddaily,thatwouldb】
- 【甲独修一条路,要180天,乙独修要150天,甲乙合作,甲修5天休息2天,乙修6天休息1天,他们3月1日开始工作什么时候能修完?】
- 1.ThereadersoftheShanghaiStudents'Postwilldefinitelyhaveanadvantageoversomanyothersbecauseoftheircommitment___English.A.forlearningB.tolearnC.inlearningD.tolearning为什么选D?2.Studyingabroadcouldbeagoodopportunity