70年代，另一位年轻的科学家，迈克尔 卡普兰发现在大鼠脑中存在神经再生现象（即神经元细胞新生）。

Then, in the 1970's, another young scientist, Michael Kaplan discovered neurogenesis (the birth of new neurons) in the brains of rats.

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人均收入达到了12670元，比上世纪90年代增长了40倍。

The per capita income reached 12,670 yuan, 40 times more than in the 1990s.

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清单1代表Trails视图的元数据。

Listing 1 represents the metadata for the Trails views.

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