在片剂的薄膜包衣液中加入丙二醇作为（  ）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='24954' and id < 2126892 and id<>'2126892' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='24954' and id > 2126892 and id<>'2126892' order by id asc limit 5