BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 China 129 54.7%
2 United States 51 21.6%
3 Germany 18 7.6%
4 France 9 3.8%
5 Netherlands 7 3%
6 Hong Kong 6 2.5%
7 Taiwan 5 2.1%
8 Senegal 3 1.3%
9 Czech Republic 2 0.8%
10 Canada 2 0.8%
11 Singapore 2 0.8%
12 Argentina 1 0.4%
13 Serbia 1 0.4%