半个世纪以来，医学科学取得巨大的进展，人类藉化学、免疫、抗生素疗法三大防治手段，基本上控制了以往主要威胁人类健康的传染病，而肿瘤、心脑血管等疾病逐渐成为人类健康的主要敌人，其中尤以肿瘤的危害为甚。t多年来，人们虽然进行了很大的努力，也取得不少进展 Over the past half century, medical science has made tremendous progress. Humans have used the three major prevention and control methods of chemistry, immunity, and antibiotics to basically control the infectious diseases that previously threatened human health. Cancer, cardiovascular and cerebrovascular diseases have gradually become human health. The main enemy, especially the harm of tumors. t Over the years, although people have made great efforts, they have made a lot of progress.