考博考试

试题来源：考博英语-141
【单选题】 According to the passage, which of the following is one of the primary factors that led researchers studying hallucinogenic drugs to focus on serotonin
A．The suppression of the activity of serotonin-secreting neurons by the administration of hallucinogens.
B．The observed similarities in the chemical structures of serotonin and hallucinogens.
C．The effects the administration of hallucinogens has on serotonin production in the human brain.
D．Serotonin-induced changes in the effects of hallucinogens on behavior.

参考答案：D
网考网解析：
由第一段知研究者们focus on serotonin基于两个原因：一是serotonin与大部分的 halluc... 查看试题解析出处>>