核内的加工酶切下内含子,同时外显子 ( 编码序列 ) 连接在一起.The introns are cut out by processing enzymes in the nucleus and the exons ( coding sequences ) ligated together.结论国内dystrophin基因44～51号内含子高度不稳定,容易发生断裂.Conclusions Introns 44 ~ 51 were hig...
She is a forerunner of the modern women's movement.她是现代妇女运动的先驱.Anglo - Saxon is the forerunner of modern English.盎 格鲁撒 克逊语是现代英语的先驱.Penicillin was the forerunner of modern antibiotics.青霉素是现代抗生素的先导....
A steamer takes on a pilot before coming into a strange harbour.轮船进入陌生的港口前要雇用引航员。The steamer calls at several ports along the way.一路上,汽船在好几个港口停靠。One summer, pumping stations such as steamer general, maintenance, operatio...
Take the sickle which is lying on the grindstone.把磨刀石上的那把镰刀拿去.She bought herself a hoe and a sickle.她给自己买了一把锄头和一把镰刀.A bad shearer never had a good sickle.拙匠无利器....
Dealing with Valentine was like dealing with a king.跟瓦伦丁来往就象跟国王来往.His essay is a valentine to London.他那篇散文是为怀念伦敦而写的.It's a long story. Valentine is a priest. People celebrate that day in memory of him.这说来可就话长了. Vale...