英国学者巴顿则认为，城市是一个在有限空间地区内的多种经济市场，( )相互交织在一起的网状系统。

A．住房

B．劳动力

C．建筑物

D．运输

E．土地

Due to the fact _______there is plenty to see, it would be better if you made a list before hand of ______exactly you want to go.

A．what; where

B．that ; where

C．that; which

D．which; when