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 United States 43 43.9%
2 Netherlands 19 19.4%
3 Germany 10 10.2%
4 China 8 8.2%
5 France 5 5.1%
6 Russia 4 4.1%
7 United Kingdom 3 3.1%
8 India 2 2%
9 Italy 2 2%
10 Moldova, Republic of 1 1%
11 Canada 1 1%