There are just four kinds: adenine, thymine, guanine and cytosine.只有4种: 腺嘌呤 、 胸腺嘧啶 、 鸟嘌呤和胞核嘧啶.The DNA base composition is 32.6 - 33.1 mol % guanine plus cytosine.DNA(脱氧核糖核酸)的G+C 摩尔百分含量为32.6—33.1.It is a layer of guanine ...
Why did you walk away from me like that? H ave I said words to offend you?你为什么要那样离开我 呢 ?我说的话惹你生气了 吗 ?They'ave stolen my'eart awye!'偷走了我的心!Gorn right out, they'ave.过时了, 高礼帽....