放射性活度的单位是贝克（Bq)，l次衰变每秒为 Bq。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30408' and id < 2458230 and id<>'2458230' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30408' and id > 2458230 and id<>'2458230' order by id asc limit 5