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 81 42.6%
2 United States 49 25.8%
3 Netherlands 26 13.7%
4 Germany 17 8.9%
5 Hong Kong 5 2.6%
6 Pakistan 4 2.1%
7 Taiwan 4 2.1%
8 United Kingdom 1 0.5%
9 Portugal 1 0.5%
10 Russia 1 0.5%
11 India 1 0.5%