保持石错清洁无杂质的水洗沉淀法是使（ ）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='25692' and id < 2159712 and id<>'2159712' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25692' and id > 2159712 and id<>'2159712' order by id asc limit 5