Unit 2 Books Communication Workshop(writing)Paragraph 1:background introducton.G1:☆☆☆☆Paragraph 2:the advantages and disadvantages of texthooks and e-texthooksParagraph 3:your ...

垂径定理舞直。平分弦OA=OB,OM=OM.平分弧,:Rt△OAM2Rt△OBM,∴AM3M。直,○0关于直泾Dx称平分弦‘没迫D对时点A5点重合平分弧:震象D合试讲稿《垂径定理》试讲稿开场白：尊敬的各位评委老师，大家...

My fricndC:☆☆☆☆Name:Lily.经：☆★Age:14 years oldG绿☆☆Interests:loves dancing and singingGood at:schoulworkCunjunction words:and,bul,because试讲稿Unit4 Interests and abilitie...

I.nit 4 Space I.csson 11 The amazing Shenzhou.(listening)satelliteG1:☆☆☆☆astronaulgo intoG2:☆☆G3:Cllan's spaceShenzhou 1 wasproprammelannched inhagan in 1956.19沙，LA四ehrdth...

中位数与众数中位故：中间数框平均整：2700倒：1.5.15.1.5.1.65众数：次数最多中锁：19001.7、17、1.75、1.8众数：1800中做：1.675：众数：1.5和1.7试讲稿《中位数与众数》试讲稿开场白：尊敬的...

三角形的内角和定三角形内角和为130.CE/AB,.∠A=∠ACI∠B=∠ECD'.∠ACE+∠ECD+∠BCA=180°..∠A+∠B+BCA=1809试讲稿《三角形的内角和定理》试讲稿开场白：尊敬的各位评委老师：大家好！我是面试...

平行线的判定定理1：∠1=∠2∠1+∠2=180定理2：∠1=∠3L2+∠3=180∴2∠3=∠2.∠1=1809-∠2'allb∠3=180∠2∠1-∠3allb试讲稿《平行线的判定》试讲稿开场白：尊敬的各位评委老师大家上午好，我是...

北师大版英语七年级上册Unit3 Lesson2试讲逐字稿Good morning,dear students!Look at all of you sitting here,with your bright eyes full ofcuriosity and eagerness to learn.Your faces are...

Unit 3 Festivals and IIolidays Lesson 7 Chinese New Year.(speaking)Has he made jiaozi?g如：☆☆☆☆-Yes,he has.:☆☆-Has he set off the firework?G3:-No.he hasn't.present perfedt te...

在△ADE和△CFE中，:AE=CE,∠1=∠2，DE=FE,AADE≌人CFE∠A=∠ECF,AD=CFCF∥AB.BD=AD,.CF=BD.四边形DBCF是平行四边形（一组对边平行且相等的四边形是平行四边形).D∥BC(平行四边形的定义)，DF=BC...