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 62 54.4%
2 Netherlands 16 14%
3 United States 12 10.5%
4 France 8 7%
5 Germany 7 6.1%
6 Russia 3 2.6%
7 Bulgaria 2 1.8%
8 India 2 1.8%
9 Australia 1 0.9%
10 United Kingdom 1 0.9%