题目内容
色甘酸钠作为哮喘的预防性用药其作用机制是
2021-08-23
A.激动支气管平滑肌β2受体
B.阻断支气管平滑肌M受体
C.抑制磷酸二酯酶
D.稳定肥大细胞膜，抑制过敏介质释放
E.直接松弛支气管平滑肌
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