我国电视采用（ ）制，图像帧扫描频率25Hz,场扫描频率为50Hz,行扫描频率为15625Hz,扫描光栅的宽高比为4 : 3。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='28963' and id < 2357864 and id<>'2357864' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='28963' and id > 2357864 and id<>'2357864' order by id asc limit 5