如图，在菱形ABCD中，AB=8，点E，F分别在AB，AD上，且AE=AF，过点E作EG∥AD交CD于点G，过点F作FH∥AB交BC于点H，EG与FH交于点O．当四边形AEOF与四边形CGOH的周长之

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如图，在菱形ABCD中，AB=8，点E，F分别在AB，AD上，且AE=AF，过点E作EG∥AD交CD于点G，过点F作FH∥AB交BC于点H，EG与FH交于点O．当四边形AEOF与四边形CGOH的周长之差为12时，AE的值为（　　）

A：6.5

B：6

C：5.5

D：5

上一题下一题 0.0难度选择题更新时间:2019-12-04 10:54:32

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C

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阅读下列短文，从每题所给的四个选项（A、B、C、D）中选出最佳选项。

A

Come and see the Indian elephants and the new tigers from America. The monkeys are waiting to meet you, and the pandas from China are waiting to take pictures with you. The lovely koalas from Australia are waiting to laugh at you, and the giraffes from Africa are waiting to look down on you. The parrots want to speak to you!

TICKETS

Grown-up: $4.00 Children: Over 12 $ 2.00; Under12 $ 1.00

Opening time: 8.00 a.m.- 4.00 p.m.

Except Friday: 10.00 a.m.- 3.00 p.m.

Keep the zoo clean!

Do not touch, give food or go near animals.

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