只有4种: 腺嘌呤 、 胸腺嘧啶 、 鸟嘌呤和胞核嘧啶.There are just four kinds: adenine, thymine, guanine and cytosine.腺嘌呤:在DNA和RNA中发现的含氮的碱基 ( 6 - 氨基嘌呤 ).Adenine A nitrogenous base ( 6 - amino - purine ) found in DNA and RNA.尿嘧啶 -- 核糖核酸中的一种嘧啶,与腺...
Occupation: administrative assistant.职业：行政助理She had earlier resigned her post as President Menem's assistant...她早些时候辞去了梅内姆总统助理一职。James Bibb , assistant professor and the study's senior author.JamesBibb博士说,他是一名心...
中尉，做这些事情我是新手，你是行家。I'm a novice at these things, Lieutenant. You're the professional.燧发枪团士兵琼斯奔向作战指挥室寻找他的中尉长官。Fusilier Jones ran towards the Ops Room to find his lieutenant.他和卡西迪中尉正在勘查犯罪现场。He and Lieutenant Cassi...
BCD dial is commonly usedin intelligentinstrumentand microeomputer controlled unit.BCD码拨盘是智能仪表和微机控制装置常用的数字设备.BCD with 16 band into the compilation process, quite good.BCD码与16进制转化的汇编程序, 比较不错.Begin - B - BCD - Check adjust...
There are three short insertions in the maize 23 s gene.玉米的23s基因中有三个短的插入片段.Using genedifferential gene expression in rats which fed with ferrous methionine chelate and ferrous sulfate respectivly.研究缺铁日粮中补充蛋氨酸螯合铁与硫酸亚铁对大鼠铁...
约翰·威利斯教授是我们的英语老师.Prof. John Willis is our teacher of English.我钻进我们的小艇，威利斯掌舵，将船摆好位置准备拍照。I got into our dinghy while Willis took the helm and positioned the boat for the photograph.他们瞧不起银行职员威利斯·伍德福德.They looked down on Wil...
He knotted the laces securely together...他把带子紧紧地系在一起。He knotted the laces securely together.他把带子紧紧地系在一起。The old dread knotted her stomach.从前那些可怕的经历让她的心都揪紧了。...his knotted muscles.他紧绷的肌肉His forehead knotted in a frown.他眉头...
Place the omelette under a gentle grill until the top is set.将煎蛋饼放在烤架下用文火烘烤，直到表面凝固。She hurried away to pour more coffee and tend to the grill.她匆忙走开，去添加咖啡和照看烤架。You need to grill the tomatoes until the skins blacken.你得把番茄烤...