In order to reduce the increasing prices of vegetables , the toll(过路费)           if a truck carrying them passes through a toll station .

A．cancels

B．is cancelled

C．was cancelled

D．had been cancelled

文化人类学的三个阶段不包括（）。

A、种族论时期

B、进化论时期

C、结构论时期

D、相对论时期