在2,6,0,1,2.5,-78,51,32%,-21,

用分类讨论的方法吧,先考虑末位为0,在考虑末位为2（末位为4,6,8的情况都与2的相同）,就可以了现在比较晚了,我明天再帮你、、能等会儿吗再问：好的，明天中午再答：我正在写、等一下~答案应该是5760

thistimeonedayintheeveningattheeveofChristmasattwelveatwinterin2006manyyearspastinmentionofbefitfora

1OnMay12in20123intheweekend4onMonday5at4:306playtheguitar7up8gotobed9home10arrivedattheschool

9无论加还是减8都为奇数加或减7为偶数偶数加减偶数6为偶数偶数加减奇数5为奇数奇数加减偶数4为奇数奇数加减奇数3为偶数偶数加减偶数2为偶数偶数加减奇数1为奇数因为20不是奇数所以无解

二次曲线y=2x²+mx-1是开口向上的抛物线.对于2x²+mx-1=0∵m²-4*2*(-1)=m²+8>0∴抛物线y=2x²+mx-1与x轴有两个

inJanuaryonJanuary2rdonApril12thonMondayat8o'clockthismorninginDecemberinOctobertwelvemonthsyearmyfa

zero,un,dos,tres,quatre,cinc,sis,set,vuit,nou.活用谷歌翻译,生活更美好再问：google翻译有点小怀疑啊，能不能确定啊，我手上已经有好几个版本了，拜托高手

1.begintogotoschoolfromMonday2.makeanendonJuly12th3.inCanada4.sbwantthisRedenvelope5.havenomoney6.si

1是青2是日3是十4是口5是木6是勿7是女1+2=青+日=晴.2+3=日+十=早3+4=十+口=古4+5=口+木=呆4+6=口+勿=吻4+7=口+女=如

1Sittinginfrontofme2inthebusfrontthreeinbetweenherandme4inoppositethesupermarket5ontheplatform620,00

1+2+3+4+5-6+7+8+9-10-11-121+2+3-4-5-6-7-8-9+10+11+12

753428961614957382892163457138245796975316248426789135289574613367891524541632879

第一个：ax+b的积分出来时（1/2）ax^2+bx,然后用积分上下线做差,即[（1/2）a*0^2+b*0]-[(1/2)a*2^2+b*2]=-(2a+2b)第二个：套用公式再代入上下线即可,希望

1.postoffice2.onCenterStreet3.payphone4.acrossfromthebank5.between...and...6.near或nextto7.intheneigh

1、在3:45atthreeforty-fiveataquartertofour2、在4:15atfourfifteenataquarterpastfour3、在5点atfive(o'clock)4、

=$A$1*100+INDEX($B$1:$B$10,INT((ROW()-1)/10)+1)*10+INDEX($C$1:$C$10,MOD(ROW()-1,10)+1)

InMayInOctober2008Inthespring\summer\autumn\winterInAugust12InFebruary25,2008InMother'sDayInTeacher'

ushmyteetheathisbreakfastataquarterpastfouratfivefifteenathalfpastoneatseven祝你学习进步

都是自然数

9*10*10*10*10*109*10*10*10*10*10*109*10*10*10*10*10*10*10