A:整体性
B:相关性
C:动态性
D:环境适应性
There are more than _________ students in their school.
尿液的形成要经过过滤和重吸收两个步骤.重吸收的各种成分将进入( )
简便计算。56.5×1.25+56.5×0.75=( ____ )