单项选择题

Questions 22 to 25 are based on the conversation you have just heard.

A．Same gene, same life.
B．Identical twins also have very different lives.
C．The element of environment is more important.
D．None of the above.

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单项选择题

单项选择题

Questions 22 to 25 are based on the conversation you have just heard. 您的浏览器不支持 audio 元素。