第5题: [单项选择]检测IL-2的依赖细胞株是() A. B9 B. 7TD1 C. CTLL D. L929 E. Wish 参考答案:C 答案解析:细胞因子依赖细胞株是人们为检测某种细胞因子而筛选的,该细胞株的分裂增殖只依赖于某一种细胞因子的存在,并在一定浓度范围内与细胞增殖程度呈正相关,检测细胞因子时使用依赖细胞株提高了生物学检测的特异性。
第30题: [单项选择]{{I}} Questions 21-25 are based on the following conversation. You now have 25 seconds to read the questions 21-25.{{/I}}How many people are talking in the dialogue A. Three. B. Five. C. Two. D. Four. 参考答案:A 答案解析:[听力原文]Questions 21-25
Rodney: Let’s go in. I can’t hear anything. This is a very noisy crowd.
第31题: [单项选择]水杨酸类药物() A. 丙磺舒 B. 吲哚美辛 C. 吡罗昔康 D. 对乙酰氨基酚 E. 阿司匹林 参考答案:E