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 244 61.3%
2 United States 77 19.3%
3 Germany 30 7.5%
4 Hong Kong 17 4.3%
5 Taiwan 15 3.8%
6 Sweden 4 1%
7 United Kingdom 2 0.5%
8 Netherlands 2 0.5%
9 New Zealand 2 0.5%
10 Russia 2 0.5%
11 Singapore 2 0.5%
12 1 0.3%