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 China 169 63.8%
2 United States 33 12.5%
3 Netherlands 21 7.9%
4 Germany 14 5.3%
5 Korea, Republic of 11 4.2%
6 Senegal 6 2.3%
7 Hong Kong 4 1.5%
8 France 2 0.8%
9 Singapore 2 0.8%
10 United Kingdom 2 0.8%
11 Taiwan 1 0.4%