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 Netherlands 33 22.3%
2 United States 33 22.3%
3 China 25 16.9%
4 Germany 14 9.5%
5 France 13 8.8%
6 Taiwan 9 6.1%
7 Czech Republic 5 3.4%
8 Hong Kong 5 3.4%
9 Canada 4 2.7%
10 Russia 3 2%
11 United Kingdom 3 2%
12 Japan 1 0.7%