Na2CO3溶液加入酚酞试液变红，再加或通入少量下列物质一定不能使其红色褪去或变浅的是（　　）

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='22284' and id < 1951610 and id<>'1951610' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='22284' and id > 1951610 and id<>'1951610' order by id asc limit 5