如图,在△ABC中,CD是∠ACB的平分线,∠A = 80°,∠ACB=60°,那么∠BDC=( )
A:80°
B:90
C:100°
D:110°
Having a picnic with friends ________ more fun on Sunday.
4____5=20 25____5=5 3____4=12 4____2 > 7
6____6=1 3=18____6 5____5=1 8____3=24 6____6 < 1