若正常成人血铅含量近似对数正态分布,用300名正常成人血铅值确定99%参考值范围,最好采用公式计算
A、[img=~/QImg/2013-10-14-11-12-39/image098.jpg]±2.58S
B、1g[img=~/QImg/2013-10-14-11-12-39/image099.jpg](1gX+2.58S[img=~/QImg/2013-10-14-11-12-39/image100.jpg])
C、[img=~/QImg/2013-10-14-11-12-39/image098.jpg]+2.585[img=~/QImg/2013-10-14-11-12-39/image101.jpg]
D、1g[img=~/QImg/2013-10-14-11-12-39/image099.jpg](1gX+2.33S[img=~/QImg/2013-10-14-11-12-39/image102.jpg])
E、[img=~/QImg/2013-10-14-11-12-39/image098.jpg]+2.33S
发布时间:2023-07-24 21:01:28