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The surviving languages accordingly fall into eight principal groups, which can be grouped into the（ ）set and the Western set.
A、Eastern
B、African
C、American
D、Northern
【正确答案】：A
【题目解析】：这些幸存的语言相应地分为8大语族，印欧语系可分为东部诸语族和西部诸语族。