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Warning: Array to string conversion in /www/wwwroot/iqti.cn/wp-content/plugins/wpjam-basic/components/wpjam-basic.php on line 174
Warning: Array to string conversion in /www/wwwroot/iqti.cn/wp-content/plugins/wpjam-basic/components/wpjam-basic.php on line 174 一个数去掉首位是13,去掉末位是40,请问这个数是几?-IQ题