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 212 64.8%
2 United States 46 14.1%
3 Germany 42 12.8%
4 Taiwan 5 1.5%
5 Singapore 4 1.2%
6 Netherlands 4 1.2%
7 Finland 3 0.9%
8 Hong Kong 3 0.9%
9 Serbia 2 0.6%
10 United Kingdom 2 0.6%
11 Canada 1 0.3%
12 France 1 0.3%
13 India 1 0.3%
14 Kazakhstan 1 0.3%