体心立方晶格的布里渊区形状不是正十二面体

The shape of Brillouin zone of body-centered cubic crystal is not normal dodecahedron

介绍了可能的五种正多面体,指出正十二面体是晶体结构及其布里渊区不可能具有的正多面体形状.体心立方晶格的布里渊区是菱形十二面体,不是正十二面体.

In the seven years and eleven turns of teaching practice of the course ＂Introduction to Bilingual Physics＂, we carried out an exploration on a disquisitive and interactive teaching mode. In this paper, we present our original intention and some new ideas about teaching and introduce some teaching methods and applications of the textbook——《Bilingual Physics with Multimedia》 related to this kind of teaching mode. It gained several positive effects for cultivating freshmen students＇ initiative study and creative ability. We also suggest some measures for enhancing students＇ abilities in their fouryear study.