如图，在△ABC中，D为AB边上一点，DE∥BC交AC于点E．若ADDB=23，AE=6，则EC的长为（ ）
Come to work in our school!
Do you like using computers? Do you like typing and working in an office?
Come and work in our school. We want a secretary for our head teacher.
Working hours are from 8:00 a.m. to 5:00 p.m, from Monday to Friday.
You should be good at using computers, type very quickly and be hard-working.
Call Mr Wang: 669288.
