题目

如图是“赵爽弦图”，△ABH、△BCG、△CDF和△DAE是四个全等的直角三角形，四边形ABCD和EFGH都是正方形．如果AB=10，EF=2，那么AH等于 . 答案：【1】6The CCTV Spring Festival Gala（春晚） of 2017 held _______the eve of the lunar new year.This is ______amazing and traditional ceremony, which is also one of _______ most important celebration customs for all Chinese people.A. on, an,the B. on,an,a C. in,a,the