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 131 66.5%
2 United States 35 17.8%
3 Germany 12 6.1%
4 Russia 4 2%
5 Canada 3 1.5%
6 United Kingdom 2 1%
7 Switzerland 2 1%
8 Hong Kong 2 1%
9 Bangladesh 2 1%
10 1 0.5%
11 Estonia 1 0.5%
12 Moldova, Republic of 1 0.5%
13 Ukraine 1 0.5%