BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 China 8 21.6%
2 United States 8 21.6%
3 France 5 13.5%
4 India 4 10.8%
5 Taiwan 3 8.1%
6 United Kingdom 2 5.4%
7 Germany 2 5.4%
8 Czech Republic 1 2.7%
9 Japan 1 2.7%
10 Serbia 1 2.7%
11 Switzerland 1 2.7%
12 Brazil 1 2.7%