<img alt="" src="https://learnfile.20230611.cn/learnAppQuestion/

分类: 专业案例(暖通空调专业) 发布时间: 2023-11-03 01:21 浏览量: 0

A.0.010~0.020

B.0.020~0.025

C.0.025~0.030

D.0.030~0.035

正确答案是B