±1%(1)()EH=45°∠ACB=45°(2)300-4000=500(3)∴AB=AC+AB=AB+AB=AD+AB=AB+BC,AB=AC,AB=4*1*AB*AB*AB*AB*AB*AB*AB*AB*AB*AB*AB*AB*AB* 相关知识点: 试题来源: 解析 (1)⋅⋅⋅⋅⋅⋅(2)kx⋅(3)x=⋯ ...