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 45 35.4%
2 United States 31 24.4%
3 Germany 13 10.2%
4 Hong Kong 10 7.9%
5 Netherlands 8 6.3%
6 Taiwan 6 4.7%
7 France 5 3.9%
8 Canada 4 3.1%
9 Senegal 3 2.4%
10 India 1 0.8%
11 Czech Republic 1 0.8%