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 53 36.6%
2 China 27 18.6%
3 United Kingdom 24 16.6%
4 Germany 13 9%
5 Russia 11 7.6%
6 Taiwan 5 3.4%
7 France 4 2.8%
8 Estonia 3 2.1%
9 Czech Republic 1 0.7%
10 India 1 0.7%
11 Moldova, Republic of 1 0.7%
12 Netherlands 1 0.7%
13 Ukraine 1 0.7%