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如图所示,相邻两车站间距相等,在一条直线上.车在两站间行驶时平均速度均为v车,每次靠站停顿时间均为t.某同学位...
问题详情:如图所示,相邻两车站间距相等,在一条直线上.车在两站间行驶时平均速度均为v车,每次靠站停顿时间均为t.某同学位于车站1与车站2之间离车站2较近的某一位置,当车从车站3开动的同时,他向车站2以平均速度v人奔跑,并恰能赶...
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物体做半径为R的匀速圆周运动,它的向心加速度、角速度、线速度和周期分别为a、ω、v和T.下列关系式不正确的是(...
问题详情:物体做半径为R的匀速圆周运动,它的向心加速度、角速度、线速度和周期分别为a、ω、v和T.下列关系式不正确的是( ...
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Studentsshouldinvolvethemselvesincommunityactivities t...
问题详情:Studentsshouldinvolvethemselvesincommunityactivities theycangainexperienceforgrowth.A.who B.when C.which ...
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如果t>0,那么a+t与a的大小关系是( )A.a+t>a B.a+t<a C.a+t≥a...
问题详情:如果t>0,那么a+t与a的大小关系是( )A.a+t>a B.a+t<a C.a+t≥a D.不能确定【回答】A;知识点:不等式题型:选择题...
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已知向量=(t+1,1),=(t+2,2),若(+)⊥(-),则t的值为
问题详情:已知向量=(t+1,1),=(t+2,2),若(+)⊥(-),则t的值为 【回答】知识点:平面向量题型:填空题...
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IwasinBeijingthen.OtherwiseI t...
问题详情:IwasinBeijingthen.OtherwiseI tohelpyoumovetothenewhouse.A.wouldcome B.willhavecome C.wouldhav...
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ItisreallysadnewsforGuinnessWorldRecords.TiffanyTwo,t...
问题详情: ItisreallysadnewsforGuinnessWorldRecords.TiffanyTwo,theholderofthe61 (old)catrecord,haspassedawayinhersleepat62 ageof2...
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已知t>0,若,则t= .
问题详情:已知t>0,若,则t= .【回答】3知识点:高考试题题型:填空题...
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Exactlyhowdochildrenbenefitfromafterschoolactivities?T...
问题详情:Exactlyhowdochildrenbenefitfromafterschoolactivities?Thefollowingarethebenefitsofafterschoolactivities:※Creativity__16__Obviouschoicesarearts,music,andperformingarts,butotheractivitieslike...
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Onlywhenyourealizetheimportanceofforeignlanguages t...
问题详情:Onlywhenyourealizetheimportanceofforeignlanguages themwell.A.youcanlearn B.canyoulearn C.youlearned D.didyoulearn【回答】B知识点:倒装与省略题型:选择题...
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已知*M=,N=,则MN=( )A. B.{t|t>0} C.{t|t} D....
问题详情:已知*M=,N=,则MN=( )A.B.{t|t>0}C.{t|t}D.{2,}【回答】B知识点:*与函数的概念题型:选择题...
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Howmanyreallysufferasaresultoflabormarketproblems?T...
问题详情: Howmanyreallysufferasaresultoflabormarketproblems?Thisisoneofthemostcriticalyetdebatablesocialpolicyquestions. Inmanyways,oursocialstatisticsoverstatethedegreeofhardship.Unemploym...
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Thesystemhasbeendesignedtogivestudentsquickandeasy t...
问题详情:Thesystemhasbeendesignedtogivestudentsquickandeasy tothedigitalresourcesofthelibrary.A.access B.passage C.way D.approach【回答】A解析:考查名词的区别。该题的意思是:这个体系被...
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—Ihaven’tworkedtheproblemoutyet.WhatamIsupposedtodo?—T...
问题详情: —Ihaven’tworkedtheproblemoutyet.WhatamIsupposedtodo?—Tryagain!It’sonlydifficult.A.alot B.abitC.toomuch ...
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Ifpeoplecouldnotaskforeignvisitorspersonalquestions,t...
问题详情: Ifpeoplecouldnotaskforeignvisitorspersonalquestions,therewouldbelittletotalkabouttomakethe_______________________________________ofstrangers.A.appointment B.presentati...
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物体沿直线运动过程中,位移s与时间t的关系式是s(t)=3t2+t.我们计算在t时刻的附近区间[t,t+Δt]...
问题详情:物体沿直线运动过程中,位移s与时间t的关系式是s(t)=3t2+t.我们计算在t时刻的附近区间[t,t+Δt]内的平均速度==,当Δt趋近于0时,平均速度趋近于确定的值,即瞬时速度,由此可得到t时刻的瞬时速度为.【回答】6t+1...
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Astudyfindsthatyoungsterswhohaveasisterarehappier.Why?T...
问题详情:Astudyfindsthatyoungsterswhohaveasisterarehappier.Why?Theusualanswer—thatgirlsandwomenaremorelikelythanboysandmentotalkaboutemotions—issomehowunsatisfying,especiallytoaresearcherlikeofmywork...
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Anestimated80percentofAmericanadultsthinkmusiclessons,t...
问题详情:Anestimated80percentofAmericanadultsthinkmusiclessons,thoughattimesboringandchallengingintheeyesofsomekids,improvechildren’sabilitytolearnortheirperformanceinschool.Theysaythatthesatisfaction...
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设函数f(x)=tx2+2t2x+t-1(x∈R,t>0).(1)求f(x)的最小值h(t);(2)若h(t)...
问题详情:设函数f(x)=tx2+2t2x+t-1(x∈R,t>0).(1)求f(x)的最小值h(t);(2)若h(t)<-2t+m对t∈(0,2)恒成立,求实数m的取值范围.【回答】解(1)∵f(x)=t(x+t)2-t3+t-1(x∈R,t>0),∴当x=-t时,f(x)取最小值f(-t)=-t3+t-1,即h(t)=-t3+t-1.(2)令g(t)=h(t)-(-2t+m)=-t3+3t-1...
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T/T造句
Therefore,ifT/Tisnotdefinitelystipulatedinthetransaction,thebuyermakespaymentonlybyM/T.Consideringyourgoodtrackrecordandbearingagoodwishforthefuture,IagreetopaymentbyT/T.WeusuallyacceptpaymentbyL/Cats...
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=(1-t,1-t,t),=(2,t,t),则|-|的最小值是( )A. B. ...
问题详情:=(1-t,1-t,t),=(2,t,t),则|-|的最小值是( )A. B. C. D.【回答】C知识点:平面向量题型:选择题...
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_____thetwinsenjoyed_______atthepartyyesterday.A.Both;t...
问题详情:_____thetwinsenjoyed_______atthepartyyesterday.A.Both;them B.Both;themselves C.Neither;them【回答】C知识点:相似相近词比较题型:选择题...
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Youngpeopleareoftenunhappywhentheyarewiththeirparents,T...
问题详情:Youngpeopleareoftenunhappywhentheyarewiththeirparents,They 1thattheirparentsdon’tunderstandthem,Theyoftenthinktheirparentsaretoostrictwiththem.Parentsoftenfinditdifficulttowintheirchildren’...
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Whenyoulistentopeopletalkorreadsomethingwithoutatitle,t...
问题详情:Whenyoulistentopeopletalkorreadsomethingwithoutatitle,trytoinvent title thatsummarizes mainideas.A.the;a B.the;the ...
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T
经典语录有时候人得向命运屈服Sometimesamanhastosurrendertofate...