A: the new standard establishes breastfeeding as the biological norm and the breastfed infant as the standard for growth and development.
答:新标准的建立以母乳喂养作为生物学规范,以母乳喂养婴儿为生长和发育的标准。
2
But undergraduates are already making extensive use of standardbiological parts, through the annual International Genetically Engineered Machine competition launched in 2005.
Kelty points out that there's now an attempt to build open source biological systems, through projects like BiOS and the Registry of Standardbiological Parts.