The other two, thymine and cytosine, are single ring structures called pyrimidines.另两个为胸腺嘧啶和胞嘧啶, 即称为嘧啶的单环结构.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 compo...
Her night dress is a tartan bathrobe and hairnet ( SS 14, PA 13 ).她的睡衣是格子花呢晨衣和发网 ( 魔法石头,第14章和囚徒,第13章 ).The corridors are carpeted in tartan.走廊里铺的是花格地毯。...traditional tartan kilts.传统的苏格兰格呢短褶裙She wore a thick tartan skirt ...
研究了蜜胺磷酸盐和聚磷酸铵的互配(作用).Reciprocal preparations of melamine phosphate and ammonium polyphosphate were studied.直到现在, 治疗晚期昏睡病患者时都用硫肿蜜胺药物.UnitllUntil now, the drug melarsoprol was used to treat patients in the advanced sleepin...