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 237 63.7%
2 United States 68 18.3%
3 Germany 24 6.5%
4 Hong Kong 11 3%
5 Singapore 8 2.2%
6 Taiwan 8 2.2%
7 Sweden 4 1.1%
8 Russia 3 0.8%
9 United Kingdom 3 0.8%
10 Brazil 2 0.5%
11 Switzerland 2 0.5%
12 Netherlands 2 0.5%