移液器在吸取不同液体时，可以不更换移液器吸头。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30411' and id < 2458442 and id<>'2458442' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30411' and id > 2458442 and id<>'2458442' order by id asc limit 5