如图，在平行四边形ABCD中，AE⊥BC于E，AF⊥CD于F，BD分别与AE、AF相交于G、H．

（1）在图中找出与△ABE相似的三角形，并说明理由；
（2）若AG＝AH，求证：四边形ABCD是菱形．

读图回答下列问题。

《北纬30°中国行》从浙江舟山群岛出发，自东向西一直拍摄到西藏的阿里地区，沿途穿越9个省市自治区，节目展现了北纬30°沿线自然风光、历史文化、民俗风情和社会发展在内的全景式图画。

如果7a=8b，那么a：b=8：7

勤奋是塑造最好自我的唯一方式。（   ）

I have 1 uncle.He likes sports very 2 .He 3 soccer ball ,basketball,volleyball,baseball and more.He plays baseball and basketball very 4 .He likes to 5 the sports games 6 TV.He plays sports 7.He often says(经常说)：“Let’s 8……”He 9two clubs:basketball club and baseball club.He 10a small sports collection.He has 12 tennis rackets,10 baseballs,3 volleyballs and one soccer ball.