小明有道数学题目不会，想打电话请教老师，可是他只想起了电话号码的前7位（共8位数的电话）那么，他一次打通电话的概率是______．

A huge copy of "Zhang Zeduan's Qingming Festival at the Riverside" in the Shanghai Expo brings a grand

_____ of national treasures and cultures to the Expo table.[ ]

A. chart              

B. feast            

C. impression      

D. influence