题目:
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.
选项:
A、 the brain growing in mice when placed in a stimulating environment or neurons increasing in canaries that
B、 mice whose brains grow when they are placed in a stimulating environment or canaries whose neurons increase when they
C、 mice's brains that grow when they are placed in a stimulating environment or canaries' neurons that increase when they
D、 the brain growth in mice when placed in a stimulating environment or the increase in canaries' neurons when they
E、 brain growth in mice that are placed in a stimulating environment or an increase in neurons in canaries that
答案:
E