单选题
[2010.04]Even after decades of ______ the two brothers recognized each other immediately.
A.separation
B.cooperation
C.correspondence
D.communication
正确答案：A
答案解析：【译文】尽管已经分别了几十年，这两兄弟都是立刻认出了对方。【试题分析】词汇题。【详细解答】名词的词义选取。