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 188 58.9%
2 United States 57 17.9%
3 Germany 31 9.7%
4 Canada 18 5.6%
5 Russia 4 1.3%
6 Japan 4 1.3%
7 Hong Kong 3 0.9%
8 Ireland 2 0.6%
9 Mauritius 2 0.6%
10 Netherlands 2 0.6%
11 Romania 2 0.6%
12 Singapore 2 0.6%
13 Turkmenistan 2 0.6%
14 Taiwan 1 0.3%
15 Czech Republic 1 0.3%