某药按一级速率过程消除，消除速率常数 k = 0.056h-1,该药的半衰期是（  ）。 

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SQL Error: select id,body,options from ***_enewstiku where sourceid='24975' and id < 2127558 and id<>'2127558' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='24975' and id > 2127558 and id<>'2127558' order by id asc limit 5