第32题: [单项选择]关于F/P值叙述正确的是 () A. F/P是指荧光素占蛋白质的百分比 B. F/P值越高说明抗体分子上结合的荧光素越少 C. F/P值越高说明抗体分子上结合的荧光素越多 D. 测读A260与A280处的特异吸收峰之比 E. F/P值能说明抗体活性高低 参考答案:C 答案解析:荧光素与蛋白质结合比率(F/P):将荧光素标记抗体稀释至A280≈1.0,分别测读A280(蛋白质特异吸收峰)和标记荧光素的特异吸收峰,F/P值越高,说明抗体分子上结合的荧光素越多,反之则越少。
第33题: [单项选择]Humans have long been aware that our health is linked with all the following factors EXCEPT A. our thought B. emotions C. relationships D. wealth 参考答案:D 答案解析:[解析] 文章中提到了“Humans have long been aware that our health is linked with our thought,emotions and rela