— I prefer western food. It's delicious and good for us.
— ? But western food is said to be high in sugar and fat.
A:Is that right
B:How do you know that
C:Do you really think so
D:Who told you that
食物的消化和牙齿的咀嚼及舌的搅拌没有关系。( )
如图,在△ABD和△FEC中,点B,C,D,E在同一直线上,且AB=FE,BC=DE,∠B=∠E.求证:∠ADB=∠FCE.