摘要: 题目如下: All DNA is composed of a series of nucleotides abbreviated as A, C, G, and T, for example: "ACGAATTCCG". When studying DNA, it is sometimes usef 阅读全文
posted @ 2018-11-28 15:50 seyjs 阅读(156) 评论(0) 推荐(0) 编辑