在1,2,3,4,5,6,7,8,9,10,这10个数面前添上正号或符号

音阶排列是固定的,哪个调的哪个音在几弦几品是不变的．3(Mi)在第二品,4(Fa)就在第三品;7(Xi)是空弦音,1(Do)就在该弦的第一品,这是因为3和4之间,以及7和1之间是半音．其它各音之间要隔

thistimeonedayintheeveningattheeveofChristmasattwelveatwinterin2006manyyearspastinmentionofbefitfora

1badbehavior2loudtalkingonthephoneinpublicplaces.3spokeloudlyinpublicplaces.4litteringinpublicplaces

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

inJanuaryonJanuary2rdonApril12thonMondayat8o'clockthismorninginDecemberinOctobertwelvemonthsyearmyfa

再答：再问：6分之7除以9分之5在乘以14分之5再问：5分之2减去5分之2在除以2在乘以3分之5再答：

1、At10:30inthemorning2、At8:45thisevening3、Oneandahalfhours4、Nextmarch5、Thedaybeforeyesterday6、OnSept

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

1、从早到晚frommorningtillnight2、在4月1日onApril1st3、在那段时间atthattime4、一个月以后amonthlater5、直到7点until7:006、在星期三的

1Sittinginfrontofme2inthebusfrontthreeinbetweenherandme4inoppositethesupermarket5ontheplatform620,00

象是（3.1）,（3.5）,（7,1）（7,5）马是（3,3）,（1,3）,若马贴身周围没有棋子,马还有（4,2）士只有（5,2）一种可能

1.Cu2(OH)2CO3==△==2CuO+H2O+CO2↑2.2Mg+02=点燃=2Mg03.2Hg+O2=△=2HgO4.S+02=点燃=S025.4P+5O2=点燃=2P2O56.3Fe+20

753428961614957382892163457138245796975316248426789135289574613367891524541632879

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、

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

ushmyteetheathisbreakfastataquarterpastfouratfivefifteenathalfpastoneatseven祝你学习进步

1.inthefrontof2.infrontof3.amoung……4.nearto5.aroundtheshop8.beween……9.inthemorning10.inarainyafterno