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 324 77.7%
2 United States 34 8.2%
3 Germany 30 7.2%
4 Hong Kong 4 1%
5 Russia 4 1%
6 Singapore 4 1%
7 Sweden 2 0.5%
8 Taiwan 2 0.5%
9 Ireland 2 0.5%
10 Italy 2 0.5%
11 Netherlands 2 0.5%
12 Norway 2 0.5%
13 Brazil 2 0.5%
14 Canada 2 0.5%
15 Ukraine 1 0.2%