平面上有99条直线，这些直线最多有多少个交点？（ ）

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SQL Error: select id,body,options from ***_enewstiku where sourceid='31435' and id < 2519903 and id<>'2519903' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='31435' and id > 2519903 and id<>'2519903' order by id asc limit 5