用可见分光光度法测定时，要求供试品溶液的吸光度应在

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30368' and id < 2454656 and id<>'2454656' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30368' and id > 2454656 and id<>'2454656' order by id asc limit 5