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 United States 71 49.3%
2 China 32 22.2%
3 Germany 16 11.1%
4 Hong Kong 5 3.5%
5 France 5 3.5%
6 Senegal 4 2.8%
7 United Kingdom 4 2.8%
8 Russia 3 2.1%
9 Australia 2 1.4%
10 Finland 1 0.7%
11 Netherlands 1 0.7%