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 Germany 61 35.9%
2 United States 41 24.1%
3 China 36 21.2%
4 Netherlands 12 7.1%
5 Senegal 4 2.4%
6 France 4 2.4%
7 Canada 3 1.8%
8 Singapore 3 1.8%
9 United Kingdom 2 1.2%
10 Finland 1 0.6%
11 India 1 0.6%
12 Japan 1 0.6%
13 Korea, Republic of 1 0.6%