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

除社会政治原则之外，物权法本身所具有的结构原则包括( )。

A．物权相对性原则

B．物权优先原则

C．物权法定原则

D．公示原则和公信原则

E．物权绝对性原则