【单选题】【消耗次数：1】
氟马西尼主要作用机制是
①
增强乙酰胆碱的作用
②
增强谷氨酸和天门冬氨酸的作用
③
与BZ受体结合拮抗苯二氮卓类药物的效应
④
降低GABA的作用
⑤
降低去甲肾上腺素能神经元兴奋性
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