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 168 44.3%
2 United States 153 40.4%
3 Germany 39 10.3%
4 Russia 6 1.6%
5 Switzerland 2 0.5%
6 United Kingdom 2 0.5%
7 France 2 0.5%
8 Hong Kong 2 0.5%
9 India 2 0.5%
10 Moldova, Republic of 2 0.5%
11 Ireland 1 0.3%