The same question had arisen in the 1970s about morphine, a compound isolated from the poppy and found to bind to so-called opiate receptors in the brain.
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美
- 相同的问题于1970年代也出现过,起因是从罂粟当中提炼出来的某个化合物,可与脑中所谓的鸦片受体结合。