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 United States 53 32.5%
2 China 48 29.4%
3 Germany 26 16%
4 Netherlands 14 8.6%
5 Senegal 7 4.3%
6 Russia 6 3.7%
7 Philippines 5 3.1%
8 France 3 1.8%
9 Moldova, Republic of 1 0.6%