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题库 / Prep2007E1-SC-64
Recently documented examples of neurogenesis, the production of new brain cells, include the brain growing in mice when placed in a stimulating environment or neurons increasing in canaries that learn new songs.
the brain growing in mice when placed in a stimulating environment or neurons increasing in canaries that
mice whose brains grow when they are placed in a stimulating environment or canaries whose neurons increase when they
mice's brains that grow when they are placed in a stimulating environment or canaries' neurons that increase when they
the brain growth in mice when placed in a stimulating environment or the increase in canaries' neurons when they
brain growth in mice that are placed in a stimulating environment or an increase in neurons in canaries that
就是说mice后面如果跟定语的话，不能用when来修饰，所以when一定修饰的别的东西。
可以这么认为，因为when在做定语从句的关系词的时候，肯定是要修饰时间的。
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