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 57 51.8%
2 China 27 24.5%
3 Russia 7 6.4%
4 Taiwan 5 4.5%
5 United Kingdom 3 2.7%
6 France 3 2.7%
7 Germany 3 2.7%
8 Moldova, Republic of 1 0.9%
9 Netherlands 1 0.9%
10 Poland 1 0.9%
11 Austria 1 0.9%
12 Ukraine 1 0.9%