某技术方案的销售收入与总成本的函数曲线图如图1所示。图中A点代表的是（ ）。 

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SQL Error: select id,body,options from ***_enewstiku where sourceid='26361' and id < 2203690 and id<>'2203690' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='26361' and id > 2203690 and id<>'2203690' order by id asc limit 5