The last thirty years _____ the greatest number of laws stopping our rights and progress. Until today we have reached a stage _____ we have almost no rights at all.

A．saw; which

B．see; where

C．are seeing; in which

D．have seen; where

跨文化交流的障碍之一是来自不同的人在互动时会存在一种（）意义上的隔膜。

A.文化水平

B.价值观

C.文化符号

D.文化背景