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 149 58.9%
2 United States 41 16.2%
3 Germany 38 15%
4 Canada 15 5.9%
5 Hong Kong 2 0.8%
6 Netherlands 2 0.8%
7 Russia 2 0.8%
8 Sweden 1 0.4%
9 1 0.4%
10 Bangladesh 1 0.4%
11 Moldova, Republic of 1 0.4%