假设下面是你某一天

DearZhangpen:MynameisMalin,yourfriend,youknow,huhu,don’tforgetme,Iwillcry.Althoughwejustmetforfiveti

KatrinaisstudyinNO.16middleschool.Herhomeisnotfarfromschool.sheusuallygotoschoolbybike.Ittakesabout1

第一个问就是用万有引力中的黄金代换,你已经会了,第二个问用动能定理或者是机械能守恒定律,怎么会想用万有引力的知识解决（2）问呢?

DearDavid,I'mgladtoreceiceyourletterandIwouldfeelhonoredifmysuggestionmayhelpyou.Astoyourquestion,ac

DearStelia:Thanksforyourcongratulations.Iamveryhappytoo.Ofcourse,Iheardthatyouhavedifficultiesinlear

Hello,thisismyroom,whichdecorationisthemostwhatIlike.Thisismybed,wheremybagisputon.Onthetablethereis

Ihaveagoodfriend,Katrina.KatrinastudyinThesixthMiddleschool.Herhomeisn’tfarfromschool.Sheoftengoesto

已经写好了!请复制下面的链接

NoticeThestudentsofSeniorGradeOneandGradeTwogooutforavisitonApril25.We’llfirstgotothemuseumtoseeanex

OurPlansinNewYear      Infamily,everyonehasaNewYear'splan.Myfather

我的饮食习惯偏清淡,爱好写书看书爬山,经历嘛,请问你想要什么经历?工作经历?感情经历?生活经历还是什么?

Onepossibleversion:             &nb

Onepossibleversion:             &nb

forbreakfast,lliketwoeggs,icecreamandbread.再问：50词！！！……再答：稍等一下再问：哦再答：forlunch,llikechicken,riceandbro

Iamjohnson.MybirthdayisonMarch12thandIam13yearsold.Youcancallmethatthetelephoneis866-89999.Playingte

Ihaveahappyfamily.Therearefourpiopleinmyfamily.Theyaremyfather,mymother,mysister,Mary,andI.MynameisP

IamDaveHall.Therearefourpeopleinmyfamily:myfather,mymother,mysisterandme.Ihavetheerfriend:Mary,Peter

A、假设磁体周围失去了磁场，将不会出现电磁感应，发电机不能工作，但我们还可以从电池获取电能，故A错；B、假设导体都变成超导体，电动机的线圈的电阻为0，电能将全部转化为机械能，其效率将会提高，故B正确；

Thingshavenaturalselection,thesurvivalofthefittest!上帝是个扶强不扶弱的家伙…

Mikelivesabout6kilometersawayfromhisschool.Heusuallygoestoschoolbybicycle,andhewilltakebusifitrains.