"Shanghai's students have been _____ to a lot of foreign culture. They may soon go beyond the stage of

worshipping (崇拜) other cultures and return to their own," Gu Xiaoming said. [ ]

A. linked

B. attended

C. assessed

D. exposed

液压动力转向系统主要由（）等组成

A.转向油泵

B.转向动力缸

C.转向控制阀

D.机械转向器