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 165 63.2%
2 United States 42 16.1%
3 Netherlands 24 9.2%
4 Germany 9 3.4%
5 Hong Kong 7 2.7%
6 Korea, Republic of 7 2.7%
7 Senegal 4 1.5%
8 Singapore 1 0.4%
9 United Kingdom 1 0.4%
10 France 1 0.4%