[医] 粘液腺瘤

Study Finds Removing Polyps Saves Lives Colon cancer normally starts with growths called polyps inside the intestine. Previous studies have shown that removing polyps can prevent colon cancer from developing. The new study, published in the New Engla

发表于:2019-01-14 / 阅读(241) / 评论(0) 分类 VOA标准英语2012年(二月)
学英语单词