也许，这些语言是很久以前从同一种源语言发展而来的；也就是说，也许它们在“基因”上是有联系的，这就是梵语、拉丁语和希腊语的情况。
Maybe the languages developed from the same source language long ago, that is, maybe they are genetically related, that was what happened with Sanskrit, Latin and Greek.
基因疗法曾经由于缺少安全和有效的方法将治疗性基因转导入细胞内部而被认为没什么发展前景。
The promise of gene therapy has long been held up by the lack of a safe and effective way to insert the desired therapeutic genes into the right cells.
目的：了解基因工程药物的临床使用现状和发展趋势，为临床合理使用提供参考。
OBJECTIVE:To investigate the utilization status and the developmental tendency of genetic engineering drugs for references of clinical rational administration.
应用推荐