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in 2000 middle age for the average German occu

2022-08-05 19:18:10 问答库 阅读 171 次

问题详情

in 2000,middle age for the average German occurred
A.at37.1 years.
B.at40 years.
C.at39.2 years.
D.at 52 years.请帮忙给出正确答案和分析,谢谢!

参考答案

正确答案:B

考点: