某药师欲制备含有毒剧药物的散剂*但 毒剧药物的剂量仅为0.0005g，故应先制成（    ）

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SQL Error: select id,body,options from ***_enewstiku where sourceid='27494' and id < 2270466 and id<>'2270466' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='27494' and id > 2270466 and id<>'2270466' order by id asc limit 5