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Warning: fclose() expects parameter 1 to be resource, bool given in /www/wwwroot/www.wendadaohang.com/inc/function.php on line 2475 空气能热水器电路板上的保险丝经常烧,换好用两三天又烧了。请问是什么原因引起的,怎么查?谢谢! - 66问答网