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 97 62.6%
2 United States 16 10.3%
3 France 14 9%
4 Netherlands 12 7.7%
5 Russia 6 3.9%
6 Germany 4 2.6%
7 Czech Republic 2 1.3%
8 Canada 2 1.3%
9 Turkey 1 0.6%
10 India 1 0.6%