According to the newsman, as a result of_____ heavy fog, _____ expressway has been closed up until further notice.

A．a; the

B．the; 不填

C．不填;an

D．the; the

正畸的最终目标是将牙列矫正为()

A．错

B．早接触

C．干扰

D．平衡

E．个体正常