诊断代谢性酸中毒的主要依据为（ ）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='25432' and id < 2142239 and id<>'2142239' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25432' and id > 2142239 and id<>'2142239' order by id asc limit 5