某药的t 1/2为3小时，每隔1个t 1/2给药一次，达到稳态血药浓度的时间是

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='61271' and id < 3886669 and id<>'3886669' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='61271' and id > 3886669 and id<>'3886669' order by id asc limit 5