题目内容

HLA-Ⅱ类分子重链的胞质区E．

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假定退休后的投资回报率为3%，则杨先生60岁夫妻俩一起退休时，退休基金必需达到的规模为()万元。

A. 178.24
B. 180.76
C. 181.34
D. 183.89

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