下列机械传动中传动效率髙的是（ ）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='24895' and id < 2124525 and id<>'2124525' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='24895' and id > 2124525 and id<>'2124525' order by id asc limit 5