安神药的服用方法是（）

A.定时服

B.趁热服

C.空腹服

D.临睡前服

E.饭后立即服

A client with a known history of opiate addiction is treated for multiple stab wounds to the abdomen. After surgical repair the nurse notes that the client’s pain is not relieved by the prescribed IM meperidine hvdrochloride(Demerol)injections. The nurse recognizes that the failure to achieve pain relief from the Demeroi injections indicates that the client is probably experiencing the phenomenon of()

A．Tolerance

B．Habituation

C．Physical addiction

D．Psychological addiction