BPG致力于知识的发现和传播
Total Visits of This Article
2022 | 总访问次数
排名 国家/地区 数量 占比
1 United States 4 28.6%
2 Germany 3 21.4%
3 France 2 14.3%
4 United Kingdom 2 14.3%
5 Tanzania, United Republic of 1 7.1%
6 Canada 1 7.1%
7 China 1 7.1%