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 24.8%
2 United States 28 22.4%
3 Germany 22 17.6%
4 Netherlands 22 17.6%
5 France 9 7.2%
6 United Kingdom 4 3.2%
7 Hong Kong 3 2.4%
8 Czech Republic 3 2.4%
9 Estonia 1 0.8%
10 India 1 0.8%
11 Russia 1 0.8%