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  3. We are used to the idea of aging in ourselves. We are so used to this that it comes as a surprise to find that there may be some

We are used to the idea of aging in ourselves. We are so used to this that it comes as a surprise to find that there may be some

admin2013-05-15  21
问题     We are used to the idea of aging in ourselves. We are so used to this that it comes as a surprise to find that there may be some animals that do not age. Sea anemones(海葵)are an example. Some have been kept for nearly a century without showing any signs of lifelessness. Some kinds of sea worms can even "grow backwards". If kept in the dark and given nothing to eat, they get steadily smaller. They finally end as a ball of cells(细胞)looking rather like the egg from which they came. Under good conditions the ball will turn back to a worm and start growing again. One could probably keep them growing and ungrowing again and again.  
According to the passage, which of the following statements is NOT true?
选项 A、We can keep certain kind of sea worm growing and ungrowing again and again.
B、Human beings will grow old and die.
C、An anemone is a kind of sea worm that can grow backwards.
D、Some anemones will live nearly a hundred years.
答案D
解析 事实细节题。由第四句可知，一些海葵经过了将近一个世纪还保存完好，并不是说海葵会活到将近100年。D的说法不正确，故选D。
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