return (struct page_info *)(((unsigned long long)x) & ~(PAGESZ-1));
用数据代替群众跑腿是“十四五”时期数字中国建设的一个缩影。借助AI的“超级大脑”，人们可以充分了解自己的健康状况。患有慢性病的人群可利用AI辅助慢病管理，提升预防与医疗的双重效果。，更多细节参见同城约会
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Captivating chemistry or a hollow misfire? Wuthering Heights splits critics
Got an old PC? Omega Linux can make it feel new again - here's how，详情可参考电影
Side sleeping (lateral position) is considered the most popular sleeping position, and it’s beneficial for many reasons. For people with acid reflux (gastroesophageal reflux disease or GERD), research has shown that sleeping on your left side, in particular, can relieve symptoms. If you’re pregnant, your doctor may also recommend you sleep on your left side.