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 30 36.6%
2 United States 16 19.5%
3 Germany 14 17.1%
4 France 7 8.5%
5 Netherlands 6 7.3%
6 Senegal 4 4.9%
7 Taiwan 2 2.4%
8 Togo 1 1.2%
9 Russia 1 1.2%
10 Korea, Republic of 1 1.2%