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 22 27.5%
2 Netherlands 16 20%
3 United States 16 20%
4 Germany 7 8.8%
5 United Kingdom 6 7.5%
6 Hong Kong 4 5%
7 Taiwan 3 3.8%
8 India 2 2.5%
9 France 2 2.5%
10 Poland 1 1.2%
11 Russia 1 1.2%