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 ...
Dietary experts can advise on the ins and outs of dieting.饮食专家可以对日常饮食的方方面面提出建议。She has already lost around two stone through dieting.她通过节食已经减掉了大约两英石的体重。Dieting is a mug's game.傻瓜才节食。...
The duty of a godmother is to make you learn your catechism.教母的职责是帮助你学好教义问答.The fairy godmother's magic charm turned Cinderella's rags into a beautiful gown.神仙教母的魔法使灰姑娘的破烂衣衫变成了一件漂亮的长外衣.The woman I regarded as m...