With respect to opioid receptors ( )
A、Fentanylworkspredominantlyatthekappareceptors
B、BothUanddeltareceptorscontributetorespiratorydepression
C、Methadoneisusedforheroinwithdrawalbecauseitsactionsarepredominantlyatthedeltareceptors
D、Opioidreceptorsarecoupledtoatyrosinekinasemechanismofaction
E、Physicaldependenceandtoleranceiscausedbytherapiddisintegrationofreceptors
发布时间：2025-07-14 10:07:08
