下列关于唾液的生理作用,错误的是(    )

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='2670' and id < 201053 and id<>'201053' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='2670' and id > 201053 and id<>'201053' order by id asc limit 5