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 United States 43 40.2%
2 China 21 19.6%
3 Germany 15 14%
4 India 7 6.5%
5 Netherlands 3 2.8%
6 Argentina 3 2.8%
7 France 3 2.8%
8 United Kingdom 2 1.9%
9 Pakistan 2 1.9%
10 Russia 2 1.9%
11 Spain 2 1.9%
12 Turkey 1 0.9%
13 Australia 1 0.9%
14 Brazil 1 0.9%
15 Czech Republic 1 0.9%