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 29 25%
2 United States 23 19.8%
3 Germany 17 14.7%
4 Denmark 16 13.8%
5 Netherlands 10 8.6%
6 France 6 5.2%
7 Cameroon 6 5.2%
8 Russia 2 1.7%
9 India 2 1.7%
10 United Kingdom 2 1.7%
11 Japan 1 0.9%
12 United Arab Emirates 1 0.9%
13 Australia 1 0.9%