BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 52 51%
2 Netherlands 13 12.7%
3 United States 13 12.7%
4 Germany 10 9.8%
5 Russia 6 5.9%
6 Canada 3 2.9%
7 France 2 2%
8 Brazil 1 1%
9 Turkey 1 1%
10 United Kingdom 1 1%