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

分类: 专业案例(动力专业) 发布时间: 2023-11-03 01:21 浏览量: 0

A.7.56t/h,4000Pa

B.7.62t/h,5806Pa

C.7.62t/h,4000Pa

D.7.56t/h,5806Pa

正确答案是B