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 179 46.1%
2 United States 121 31.2%
3 Germany 43 11.1%
4 Netherlands 27 7%
5 Taiwan 3 0.8%
6 India 3 0.8%
7 Hong Kong 2 0.5%
8 Canada 2 0.5%
9 Russia 2 0.5%
10 Singapore 2 0.5%
11 United Kingdom 1 0.3%
12 Chile 1 0.3%
13 France 1 0.3%
14 Ireland 1 0.3%