2024知到答案 环境工程原理(全英文)(浙江师范大学) 最新智慧树满分章节测试答案
第一章 单元测试
1、单选题:
The concentration of N2O in the atmosphere of a farmland is 3.2×10-9(volume fraction), then the mass concentration of N2O at an atmospheric pressure of 1.013 × 105Pa and 25°C is ( ) μg/m3.
选项:
A:15.7
B:21.0
C:5.75
D:90.7
答案: 【5.75】点我阅读全文