—Why don't you like city life?
—Because I think the traffic is _______ and the cost of living is ______.
A：much; high
B：heavy; much
C：heavy; high
已知四边形ABCD是梯形，且AD∥BC，AD＜BC，又⊙O与AB、AD、CD分别相切于点E、F、G，圆心O在BC上，则AB+CD与BC的大小关系是（ ）
