BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 186 61%
2 United States 57 18.7%
3 Germany 40 13.1%
4 Russia 5 1.6%
5 France 3 1%
6 Canada 3 1%
7 United Kingdom 2 0.7%
8 Singapore 2 0.7%
9 Taiwan 2 0.7%
10 Ireland 2 0.7%
11 Mauritius 1 0.3%
12 Netherlands 1 0.3%
13 Ukraine 1 0.3%