题目内容
函数y=f(x)在定义域(-
,3)内可导,其图像如图所示,记y=f(x)的导函数为y=f′(x),则不等式f′(x)≤0的解集为
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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='14233' and id < 1170627 and id<>'1170627' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='14233' and id > 1170627 and id<>'1170627' order by id asc limit 5