A long drum roll introduced the trapeze artists.长长的一阵紧锣密鼓声中迎来了高空秋千表演者。By the time he was nine years old, he was already performing as a trapeze artist.他年仅九岁时，便已经在表演空中飞人的特技。He was a great trapeze artist, but he was comple...
It enables a specific gene to be located on a particular restriction enzyme fragment.它就能使专一的基因被定位于特定的限制性内切酶切成的片段上.And what is more: The technique can be used with all objective magnifications is no restriction.特别提示: 这种技术...
Nobody feels safe – from Eon and Siemens [ the two largest companies by market capitalisation ] downwards .没人感到安全——从 Eon 和西门子 ( 市值最大的两家公司),到规模较小的公司都是如此.My current screen saver has switched from EON to the default screen ...