Sir John Sulston got a Nobel Prize for Medicine because he has ______. People might be seriously ill if the cells in their body

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问题 Sir John Sulston got a Nobel Prize for Medicine because he has ______.
People might be seriously ill if the cells in their body ______.

选项 A、grow without being instructed
B、die regularly
C、fail to follow people’s instructions
D、develop in the human body

答案A

解析由最后一段第一、二句话可推出，故选A。

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