Porcine transmissible gastroenteritis virus (TGEV) is the causative agent of acute diarrhea of new-bo piglets that provokes high mortality rates in affected far
The advantages and disadvantages of asymmetric PCR-SSCP and the traditional PCR-SSCP were compared in this study.The mutations in 3’UTR of Smad4 gene of Luxi c
杞县大同中学以创办《群鸥》校报为园地,让学生在自采、自编、自印的实际工作中提高了观察、思维和组织能力,培养了一批小记者。这个学校在办校报中经常向学生传授一些新闻
Transposable elements are widely distributed in eukaryotes. Due to its high copy numbers, high forward mutation rate and preferential insertion into low-copy DN
党的十八大把“富强、民主、文明、和谐、自由、平等、公正、法治、爱国、敬业、诚信、友善”这24个字确立为社会主义核心价值观的基本内容。当代大学生价值观的主流是积极、健康、向上的,但由于各种因素的负面影响,再加上大学生自身存在的弱点,使得他们的价值观念发生了许多异变,出现了一些如重金钱轻理想、重个人利益轻国家集体、重知识轻道德品质、重奢侈享受轻艰苦奋斗等不容忽视的问题。一些职业院校由于过分强调就业教育
沙打旺(Astragalus adsurgens Pall)系豆科黄芪属多年生草本植物。它具有较强的耐寒、耐旱、耐瘠、耐盐碱和抗风沙等特点。河北、河南、山东黄河故道一带曾做为改土、饲料和