下列可避免肝脏的首过作用的片剂是

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30245' and id < 2446630 and id<>'2446630' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30245' and id > 2446630 and id<>'2446630' order by id asc limit 5