墓碑三三两两地竖立在地面上。Tombstones jutted out of the ground in broken clusters.她的头发一簇簇竖立着。Her hair stood out in spikes.一根天线在草地边上竖立着。An aerial thrust up from the grass verge....
She pampers her own spoiled children and brings Jane up as little better than a servant.她对她那些被宠坏了的孩子娇生惯养,但对简则有如对待佣仆.The biggest is Pampers nappies , which collected more than $ 7 billion last year.最大的是帮宝适(Pampers)纸尿裤, 去年...
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 ...