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 146 53.9%
2 United States 44 16.2%
3 Germany 33 12.2%
4 Canada 20 7.4%
5 Netherlands 12 4.4%
6 Taiwan 3 1.1%
7 Hong Kong 3 1.1%
8 France 2 0.7%
9 Italy 2 0.7%
10 Argentina 2 0.7%
11 Denmark 1 0.4%
12 Ireland 1 0.4%
13 United Kingdom 1 0.4%
14 Singapore 1 0.4%