Chengdu is a city _______ you hate to say goodbye once you have visited it.

A．in which

B．at which

C．to which

D．with which

下列关于行业内竞争程度的说法，错误的有()。

A.较低的经营杠杆增加竞争

B.市场成长越迅速，竞争程度越大

C.在行业发展阶段的后期，竞争趋于白热化

D.退出市场的成本越高，竞争程度越大

E.具有行业分散特征的行业竞争更为激烈