SAT problem with 14 variables and 126 clauses
临走时，王嫂接了个电话，对方询问是否还有山姆的鲜牛奶，王嫂说已经卖完，明天会到新货。门口的塑料门帘被风掀开一下，又落下去，外面是春节里皖北城市常见的灰白天色，街边店铺的红灯笼还挂着。
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当前，文旅市场供需两旺，但也存在“成长的烦恼”。比如，有的古镇、古街建设同质化，简单复制粘贴别处的青瓦白墙；有的景区缺少特色，“灯光秀+小吃街+复古建筑”的老三样，让游客产生审美疲劳。特色不显、竞争力不强，就容易导致“建得起、火不了、留不住客”。