χ[img=~/QImg/2013-10-14-10-49-09/image002.jpg]检验的基本公式
A、[img=~/QImg/2013-10-14-10-49-09/image028.gif]
B、[img=~/QImg/2013-10-14-10-49-09/image029.jpg]
C、[img=~/QImg/2013-10-14-10-49-09/image030.jpg]
D、[img=~/QImg/2013-10-14-10-49-09/image031.jpg]
E、[img=~/QImg/2013-10-14-10-49-09/image032.jpg]
发布时间：2023-07-24 21:00:09
