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 China 35 32.4%
2 United States 35 32.4%
3 United Kingdom 11 10.2%
4 Russia 10 9.3%
5 Taiwan 3 2.8%
6 Ukraine 3 2.8%
7 India 2 1.9%
8 Estonia 2 1.9%
9 France 2 1.9%
10 Netherlands 2 1.9%
11 Hong Kong 1 0.9%
12 Latvia 1 0.9%
13 Moldova, Republic of 1 0.9%