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 176 54.3%
2 United States 79 24.4%
3 Germany 51 15.7%
4 Taiwan 5 1.5%
5 Singapore 3 0.9%
6 Sweden 2 0.6%
7 Hong Kong 2 0.6%
8 United Kingdom 2 0.6%
9 1 0.3%
10 Netherlands 1 0.3%
11 Russia 1 0.3%
12 Ukraine 1 0.3%