如题所述
(1)图②中仅有△ABC∽△DAC;图③中仅有△ABC∽△DAC,△ABD∽△DBE;图④中仅有△ABD∽△ADE∽△DBE;作图正确且表述也正确各(2分),作图正确,表述有错误扣(1分).(2)在图③中,由△ABC∽△DAC,得CD= AC方/BC= 6方/9=4,AD= AC×AB/BC= 16/3∴BD=BC-CD=5.(1分)由△ABD∽△DBE,得DE= AD×BD/AB= 10/3.