()仪表可直接用于交、直流测量，但精确度低。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='27214' and id < 2260446 and id<>'2260446' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='27214' and id > 2260446 and id<>'2260446' order by id asc limit 5