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 300 63.7%
2 United States 87 18.5%
3 Germany 34 7.2%
4 Netherlands 13 2.8%
5 Canada 12 2.5%
6 Russia 5 1.1%
7 Hong Kong 5 1.1%
8 Singapore 4 0.8%
9 Colombia 3 0.6%
10 Finland 3 0.6%
11 Ukraine 2 0.4%
12 Uzbekistan 2 0.4%
13 United Kingdom 1 0.2%