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[期刊论文] 作者:XU Xiu-zhen,徐洊学,, 来源:内蒙古民族大学学报(自然科学版) 年份:2008
课程是大学一年级的必修课程.传统的以教为中心的教学,难以调动学生的学习积极性.而应用问题驱动式教学能使学生置身于提出问题、思考问题、解决问题的动态学习过程中,在解决...
[期刊论文] 作者:Hui-yu Deng,You-yi Xu,Xiu-zhen, 来源:高分子科学(英文版) 年份:2004
A series of nanofiltration (NF) membranes were prepared with poly(amido-amine) (PAMAM) and trimesoyl chloride (TMC) viu in situ interfacial polymerization.The e...
[期刊论文] 作者:Jin-Wu Zhao,Jing-Xiu Xu,Xiu-Zhen Guo,, 来源:Chinese Chemical Letters 年份:2014
We present here an efficient green process for the synthesis of 1,2,4-thiadiazoles via iodine-catalyzed,oxidative dimerization of thioamides in water using mole...
[期刊论文] 作者:Le-Dong Sun,Xin Chu,Li Xu,Xiu-Zhen Fan,Yi Qian,Da-Ming Zuo, 来源:世界临床病例杂志 年份:2021
BACKGROUND Primary intramedullary melanoma is a very rare tumor,most frequently occurring in the cervical and thoracic spinal cord.CASE SUMMARY We present a rare case in which the primary intramedullary melanoma was located in the lumbar sp......
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