With point d as DE¡ÍAB in e,
And DC¡ÍCB, AB¡ÍCB,
¡à¡ÏDEB=¡ÏABC=¡ÏDCB=90£¬
¡à Quadrilateral DEBC is a rectangle,
In Rt¡÷ADE, ¡Ï ¦Á = 43, DE = CB =139m.
A
What courses should the medical college entrance examination take?
The medical college entrance examination subjects are the same as the g