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 346 44.7%
2 United States 165 21.3%
3 Netherlands 141 18.2%
4 Germany 78 10.1%
5 Canada 15 1.9%
6 Iran, Islamic Republic of 8 1%
7 France 4 0.5%
8 India 3 0.4%
9 3 0.4%
10 Japan 2 0.3%
11 Serbia 2 0.3%
12 Singapore 2 0.3%
13 Turkey 2 0.3%
14 Ukraine 2 0.3%
15 Finland 1 0.1%