This article reviews the origin of cancer cells, the similarities and the differences between the tumor and the embryo, moreover the experimental progress of the tumor and the embryo in detail.
本文从发育生物学角度详细评述了肿瘤细胞的起源、胚胎与肿瘤相似性和差异性比较及肿瘤与胚胎相互作用的研究进展。
The origin of international environmental safe is introduced as well as the progress of international and China environmental safe.
简介了国际环境安全起源，分析了国际环境安全动态及国内环境安全进展。
Here we briefly review the discovery of HIV and the progress made in the field of HIV origin, pathogenesis, treatment and prevention in the past 25 years.
本文简述了艾滋病毒的发现及25年来在HIV起源、致病、治疗和预防领域取得的研究进展。
The first part discusses the origin and significance of topics, as well as domestic and foreign situation of the progress of research, which provides a theoretical basis.
第一部分论述了选题的由来和意义，以及国内外相关研究的进展状况，为本文研究提供了理论基础。
The first part discusses the origin and significance of topics, as well as domestic and foreign situation of the progress of research, which provides a theoretical basis.
第一部分论述了选题的由来和意义，以及国内外相关研究的进展状况，为本文研究提供了理论基础。
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