摘要:将答案直接写在该题目中的横线上.11.2008年8月5日.奥运火炬在成都传递.其中8位火炬手所跑的路程如下:60.70.100.60.80.70.90.100.则这组数据的中位数是 .
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(1)已知:如图①,△AOB和△COD都是等边三角形.
求证:(1)①AC=BD,②∠APB=60°;
(2)如图②,△AOB和△COD都是等腰三角形,若OA=OB,OC=OD,∠AOB=∠COD=α,则AC与BD间的等量关系式为
(3)如图③,在△AOB与△COD中,若OA=k•OB,OC=k•OD(k>1),∠AOB=∠COD=α,则AC与BD间的等量关系式为

注:第(2)、(3)小题请将答案直接写在题中横线上.
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求证:(1)①AC=BD,②∠APB=60°;
(2)如图②,△AOB和△COD都是等腰三角形,若OA=OB,OC=OD,∠AOB=∠COD=α,则AC与BD间的等量关系式为
AC=BD
AC=BD
,∠APB的大小为α
α
;(3)如图③,在△AOB与△COD中,若OA=k•OB,OC=k•OD(k>1),∠AOB=∠COD=α,则AC与BD间的等量关系式为
AC=k•BD
AC=k•BD
,∠APB的大小为180°-α
180°-α
.注:第(2)、(3)小题请将答案直接写在题中横线上.
(1)已知:如图①,△AOB和△COD都是等边三角形.
求证:(1)①AC=BD,②∠APB=60°;
(2)如图②,△AOB和△COD都是等腰三角形,若OA=OB,OC=OD,∠AOB=∠COD=α,则AC与BD间的等量关系式为______,∠APB的大小为______;
(3)如图③,在△AOB与△COD中,若OA=k•OB,OC=k•OD(k>1),∠AOB=∠COD=α,则AC与BD间的等量关系式为______,∠APB的大小为______.

注:第(2)、(3)小题请将答案直接写在题中横线上.
查看习题详情和答案>>
(1)已知:如图①,△AOB和△COD都是等边三角形.
求证:(1)①AC=BD,②∠APB=60°;
(2)如图②,△AOB和△COD都是等腰三角形,若OA=OB,OC=OD,∠AOB=∠COD=α,则AC与BD间的等量关系式为______,∠APB的大小为______;
(3)如图③,在△AOB与△COD中,若OA=k•OB,OC=k•OD(k>1),∠AOB=∠COD=α,则AC与BD间的等量关系式为______,∠APB的大小为______.

注:第(2)、(3)小题请将答案直接写在题中横线上.
查看习题详情和答案>>
求证:(1)①AC=BD,②∠APB=60°;
(2)如图②,△AOB和△COD都是等腰三角形,若OA=OB,OC=OD,∠AOB=∠COD=α,则AC与BD间的等量关系式为______,∠APB的大小为______;
(3)如图③,在△AOB与△COD中,若OA=k•OB,OC=k•OD(k>1),∠AOB=∠COD=α,则AC与BD间的等量关系式为______,∠APB的大小为______.
注:第(2)、(3)小题请将答案直接写在题中横线上.
查看习题详情和答案>>
第一节:阅读下面短文,根据以下提示:1)汉语提示;2)首字母提示;3)语境提示,在每个空格内填入一个适当的英语单词,并将该词完整地写在右边相对应的横线上。所填单词要求意义准确、拼写正确。
For many of today’s advertisers,_____(重复)old
【小题1】___________
ideas is not a successful a_____(方法).They realise
【小题2】___________
that it does not matter how____(吸引的)the idea
【小题3】___________
l____with the product is—most people know that the
【小题4】__________
main p______of the advertisement is making
【小题5】___________
c_____spend money.Instead,these advertisers look for
【小题6】__________
other ways to make people n______their products.
【小题7】___________
The top advertisers of today believe that using___(幽默)
【小题8】___________
as well as new and____(不寻常)ideas to surprise people
【小题9】__________
is important in modern advertisements.Their aim is to
_____(创造)something that has never been seen before and is
【小题10】_________
fanscinating for peopleto look at.By doing this,they
hope to make people forget that someone is trying to
sell them something. 查看习题详情和答案>>
For many of today’s advertisers,_____(重复)old
【小题1】___________
ideas is not a successful a_____(方法).They realise
【小题2】___________
that it does not matter how____(吸引的)the idea
【小题3】___________
l____with the product is—most people know that the
【小题4】__________
main p______of the advertisement is making
【小题5】___________
c_____spend money.Instead,these advertisers look for
【小题6】__________
other ways to make people n______their products.
【小题7】___________
The top advertisers of today believe that using___(幽默)
【小题8】___________
as well as new and____(不寻常)ideas to surprise people
【小题9】__________
is important in modern advertisements.Their aim is to
_____(创造)something that has never been seen before and is
【小题10】_________
fanscinating for peopleto look at.By doing this,they
hope to make people forget that someone is trying to
sell them something. 查看习题详情和答案>>