如图，在正方形ABCD中，过B作一直线与CD相交于点E，过A作AF垂直BE于点F，过C作CG垂直BE于点G，在FA上截取FH=FB，再过H作HP垂直AF交AB于P．若CG=3．则△CGE与四边形BFHP的面积之和为____ ．

    I have two good friends．They are Gina and Jenny, and they are twin(双胞胎之一的)sisters．They come from Singapore．They are 12 years old．They can speak English and Chinese．

    Now the twins are in China．Their family are in China，too．They live in Shanghai．There are five people in their family．They are their parents，their brother and them．Their mother is a doctor．Their father is a teacher．Their brother Alan is very young．He is four years old．He can't go to school．

    Gina，Jenny and I are in the same class．Every day, we walk to school and talk a lot．They say China is a very good place and they like China．

根据材料内容选择最佳答案。

在研究“铁生锈的条件”的实验中，某兴趣小组对实验进行了创新设计，请把实验报告补充完整。

【实验目的】铁生锈条件的探究。

【实验内容】取3段光亮无锈的细铁丝，绕成螺旋状，放入3支干燥洁净的试管底部，进行下列实验，实验要保证有足够长的时间来观察现象。

实验①                 实验②                 实验③

【实验现象】实验①②无明显现象，实验③中铁丝生锈，且试管内空气体积减小。