男性，45岁。体检发现尿糖阳性，对诊断糖 尿病最有意义的检查是

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SQL Error: select id,body,options from ***_enewstiku where sourceid='31868' and id < 2547955 and id<>'2547955' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='31868' and id > 2547955 and id<>'2547955' order by id asc limit 5