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 180 53.6%
2 United States 83 24.7%
3 Germany 31 9.2%
4 Canada 11 3.3%
5 Hong Kong 8 2.4%
6 Russia 4 1.2%
7 United Kingdom 4 1.2%
8 Taiwan 3 0.9%
9 India 3 0.9%
10 Ireland 3 0.9%
11 2 0.6%
12 Netherlands 2 0.6%
13 Denmark 1 0.3%
14 Mauritius 1 0.3%