读“中国山河分布图”，完成问题。
A. Good morning, Ben!
B. OK.I like bikes. Do you like bikes?
C. They are fun. I like balls, too.
D. No, I don't like bikes. I like balls.
E. Good morning, Joe! Let's paly!
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改革开放以来，海峡两岸关系不断发展，两岸交流日益频繁。下列促进两岸关系发展的重大事件发生在20世纪90年代的是( )
