可以测出两点间水平距离的仪器是( )。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='24587' and id < 2110317 and id<>'2110317' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='24587' and id > 2110317 and id<>'2110317' order by id asc limit 5