BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 50 40.7%
2 United States 20 16.3%
3 Netherlands 14 11.4%
4 France 13 10.6%
5 Russia 10 8.1%
6 Germany 9 7.3%
7 Hong Kong 2 1.6%
8 Czech Republic 1 0.8%
9 Sweden 1 0.8%
10 Turkey 1 0.8%
11 United Arab Emirates 1 0.8%
12 United Kingdom 1 0.8%