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 54 34.4%
2 United States 50 31.8%
3 Germany 13 8.3%
4 Canada 8 5.1%
5 Hong Kong 7 4.5%
6 Netherlands 7 4.5%
7 Portugal 6 3.8%
8 Senegal 4 2.5%
9 United Kingdom 4 2.5%
10 Taiwan 2 1.3%
11 Singapore 1 0.6%
12 Russia 1 0.6%