Then what is the worst habit and the best habit among subjects

Then what is the worst habit and the best habit among subjects

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送交者: HunHunSheng 于 2007-05-01, 06:37:13:

回答: 孪生子研究表明虫牙的遗传率大约60％由方舟子于 2007-05-01, 06:29:56:

The bigger differences can reduce heredibitly