Thursday, August 17, 2023
Saturday, February 15, 2025
Sunday, March 9, 2025
Tuesday, September 13, 2022
Friday, November 10, 2023
问题:抗体与抗原发生特异性结合的部位位于(),又称()。...
Friday, September 16, 2022
Saturday, February 15, 2025
问题:青霉素属于()类抗生素,它的性质很不稳定,用溶剂萃取法分离时,整...
Friday, September 16, 2022
问题:当动物细胞经过自然或人为的因素转化为()后,才能变为无限细胞系或连续细胞系,非常适合于制药工业生产。...
Thursday, July 13, 2023
问题:红细胞生成素与靶细胞的特定结合,促进()的增值,分化并成熟为红细胞,增加骨髓向循环血中释放红细胞。 A、红细胞前体细胞B、造血干细胞C、造血组织D、血夜...
Sunday, October 8, 2023
Thursday, August 17, 2023
Sunday, July 21, 2024
问题:与大肠杆菌和酵母系统相比,哺乳动物源细胞系统制药的优缺点,如何选择?...
Wednesday, August 27, 2025
Wednesday, August 6, 2025
Friday, November 10, 2023
问题:维生素K3中常加的稳定剂是()。A、氢氧化钠B、硫酸钠C、硫酸氢钠D、亚硫酸氢钠E、焦亚硫酸氢钠...
Friday, June 30, 2023
Friday, November 10, 2023
Sunday, June 8, 2025
问题:生物活性物质的常用提取方法包括()。A、用酸、碱、盐水溶液提取B、用表面活性剂提取C、用有机溶剂提取D、超临界萃取...
Friday, June 16, 2023
Friday, December 1, 2023