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 145 42.5%
2 United States 86 25.2%
3 Netherlands 37 10.9%
4 Germany 31 9.1%
5 Canada 25 7.3%
6 Ireland 9 2.6%
7 Taiwan 2 0.6%
8 France 2 0.6%
9 Hong Kong 1 0.3%
10 Russia 1 0.3%
11 Singapore 1 0.3%
12 Sweden 1 0.3%