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 206 53.5%
2 United States 121 31.4%
3 Germany 38 9.9%
4 Hong Kong 4 1%
5 Netherlands 3 0.8%
6 Russia 2 0.5%
7 Japan 2 0.5%
8 France 2 0.5%
9 2 0.5%
10 Sweden 2 0.5%
11 Brazil 1 0.3%
12 Canada 1 0.3%
13 Singapore 1 0.3%