另两个为胸腺嘧啶和胞嘧啶, 即称为嘧啶的单环结构.The other two, thymine and cytosine, are single ring structures called pyrimidines.胞嘧 啶 核苷:当胞嘧啶通过β - 糖苷键与D- 核糖接合形成的核苷.Cytidine ( cytosine nucleoside ) A NUCLEOSIDE formed when cytosine is linked ...
He had seen the rip in the book.他看到了书里的裂缝。The ecological disaster is partly a product of letting everything rip in order to increase production.出现生态灾难的部分原因是人们为了增产而不惜一切代价。Looking at the rip in her new dress, she flew into...
She felt a surge of excitement run through her.她突然觉得浑身激动。Please run through these names again from the top of the list.请将这些名字从头至尾再看一遍.Charles and Eddie are getting ready for their final run-through before the evening...