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 209 60.8%
2 United States 51 14.8%
3 Germany 37 10.8%
4 Canada 17 4.9%
5 Russia 7 2%
6 Hong Kong 4 1.2%
7 Netherlands 4 1.2%
8 Taiwan 3 0.9%
9 Turkey 3 0.9%
10 United Kingdom 3 0.9%
11 Singapore 2 0.6%
12 Colombia 2 0.6%
13 Georgia 1 0.3%
14 Ukraine 1 0.3%