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 31 29.2%
2 Netherlands 21 19.8%
3 United States 15 14.2%
4 United Kingdom 11 10.4%
5 Germany 7 6.6%
6 Hong Kong 4 3.8%
7 Taiwan 4 3.8%
8 Russia 3 2.8%
9 Estonia 3 2.8%
10 France 2 1.9%
11 Moldova, Republic of 2 1.9%
12 Czech Republic 1 0.9%
13 Mexico 1 0.9%
14 Philippines 1 0.9%