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 40 44.9%
2 United Kingdom 15 16.9%
3 China 13 14.6%
4 Russia 12 13.5%
5 India 2 2.2%
6 Moldova, Republic of 1 1.1%
7 Netherlands 1 1.1%
8 Poland 1 1.1%
9 Estonia 1 1.1%
10 France 1 1.1%
11 Hong Kong 1 1.1%
12 Ukraine 1 1.1%