关注长江水质——“绿行之踪”社会实践
张一平, 张舒琪, 赵梓润, 徐志衡, 王松阳, 张宇航, 杨迈克, 余炫霖, 朱亚先

Focus on the Water Quality of Yangtze River: Social Practice of "Trace of the Green Line"
Yiping Zhang, Shuqi Zhang, Zirun Zhao, Zhiheng Xu, Songyang Wang, Yuhang Zhang, Maike Yang, Xuanlin Yu, Yaxian Zhu
图1 调查对象的年龄、学历层次分布情况