BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 United States 42 41.2%
2 China 25 24.5%
3 United Kingdom 10 9.8%
4 Russia 9 8.8%
5 France 3 2.9%
6 Taiwan 2 2%
7 Ukraine 2 2%
8 India 2 2%
9 Netherlands 2 2%
10 Poland 1 1%
11 Germany 1 1%
12 Hong Kong 1 1%
13 Estonia 1 1%
14 Australia 1 1%