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教案备课库《初三数学学案78》真题及答案
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已知x+2y=m用含m的代数式表示2m4x+2y3+-m53x+6y2=.
They'dlikethreebowlsofmuttonandpotatonoodles.
Theboysoftengocampwiththeirparentsonweekends.
Mymotherwantsmedrinkmilkeveryday.
如图正方形的边长是a则正方形的面积是因此a·a可以看作是边长为a的正方形的面积.探究1a·b和3a·2b又可以怎样理解呢请说出它们的几何意义并画出几何图形.2请分别说出a·ab和3a·5ab的几何意义并画出几何图形.
Eatingmeatandmorevegetablescanmakeyouloseweight.
I'mhungryI'dlikealargebowlofn.
Mygrandparentsliveinthe.Theydon'tlikelivingincities.
I'mthirsty.I'dlikesomethingdrink.
计算3a2·2a3=
计算m2n3·8n4
HersisterhavelunchathomeonSundays.
计算-6m2n·x-y3·mn2·y-x2
Idon'thavesomefriendshere.
Beefandpotatoesmuttonsouparetheirspecial.
TheystayedinBeijingforfivedays.就划线部分提问 didtheystayinBeijing?
IfyouwanttospeakEnglishwellyoushouldpractice. A.often B.never C.hardly D.seldom
光的速度约是3×105km/s太阳光照射到地球上需要的时间是5×102s你知道地球与太阳的距离约是多少吗
计算3x2y·-2xy3
Letmetellyouwhatthegiraffeislike.
I'dlikeambowlofsoup.
一大碗...
—HeyTony.Youlooksotiredtoday.—I until12o'clocklastnightforthemathtest.A.wokeup B.stayedup C.grewup D.gotup
计算6x2·3xy
Lastweekweasportsmeeting.Everyonehadagreattime. A.have B.has C.had D.having
Hemakestheteacherangrybecausehelateforschool. A.alwaysis B.isalways C.never D.isnever
Wouldyoulikesomenoodleseat?
—WouldyouliketogoswimmingwithusnextSundayLinda?—I'dlovetobutIcan't.Nextweekisforme.A.full B.free C.relaxing D.happy
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