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 68 51.1%
2 United States 21 15.8%
3 Netherlands 15 11.3%
4 France 10 7.5%
5 Russia 7 5.3%
6 Germany 5 3.8%
7 Singapore 3 2.3%
8 United Arab Emirates 2 1.5%
9 India 1 0.8%
10 Czech Republic 1 0.8%