地理老师讲到地形时.使用彩色图片的效果 比只用黑白图片的效采好，这主要体现了知觉的( )

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SQL Error: select id,body,options from ***_enewstiku where sourceid='26045' and id < 2184575 and id<>'2184575' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='26045' and id > 2184575 and id<>'2184575' order by id asc limit 5