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 Netherlands 35 31.8%
2 China 19 17.3%
3 Canada 15 13.6%
4 United States 13 11.8%
5 Germany 8 7.3%
6 India 5 4.5%
7 Russia 5 4.5%
8 Singapore 3 2.7%
9 France 3 2.7%
10 Iran, Islamic Republic of 1 0.9%
11 Romania 1 0.9%
12 Brazil 1 0.9%
13 Denmark 1 0.9%