Use of genetically engineered plants that express insecticidal Cry proteins derived from Bacillus thuringiensis(Bt)have ......

研究了浙江田间转cry1C基因水稻T1c-19和转cry2A基因水稻T2A-1对靶标害虫二化螟和稻纵卷叶螟的抗性及对主要非靶标生物的影响。结......

摘 要 近年来随着我国民航业的快速发展，对航空服务类人员的需求量极大，但急剧扩张的招生规模、遍地开花的职业培训机构及各大航空公......