某物质在一定的温度下，电阻会降为零，这一现象被称为 （ ）

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SQL Error: select id,body,options from ***_enewstiku where sourceid='24942' and id < 2126591 and id<>'2126591' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='24942' and id > 2126591 and id<>'2126591' order by id asc limit 5