What does a Swedish study show?
A.Parents play a key role in a child's longevity.
B.People with religious belief usually live longer.
C.The way of life contributes most to longevity.
D.The length of life is strongly linked with genes.

A.Parents
B.
B.People
C.
C.The
D.
D.The
E.

【参考答案】

C
解析：这两句说明了一项来自瑞典的研究得出的结论：长寿仅有大约20％到30％是由基因决定的，生活方式似乎是一个......

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