A query in a system I maintain returns QID AID DATA 12x 12y 56t As per a new requirement, I do not want the (QID, AID)=(1,2) pair to be repeated. We also dont care what value is 开发者_运维问答sel
主料：酸菜、红薯粉条、五花肉、辅料：葱、姜、调料：料酒、油、盐酸、蔬菜粉条、白肉；
The requirements: For each item in the shop, keep stat about visitor\'s view. During the first 15 mins, do not count the same visitor even though that visitor re-open the web browser
主料：五花肉250g黄瓜1根辅料：葱2根姜1个小八角1个大蒜4瓣调料：料酒盐凉拌酱糖醋香油辣椒油适量熟芝麻蒜泥白肉蔬菜卷做法：
杀猪菜原本是东北农村每年接近年关杀年猪时所吃的一种炖菜。杀猪菜在保持原风味的同时，其制法已经有了改进，口味丰富，几乎把猪身上所有部位都做成了菜。猪骨、头肉、手撕肉、五花肉、猪血肠、酸菜白肉还有灯笼挂(
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