BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 United States 199 37.2%
2 China 150 28%
3 Netherlands 70 13.1%
4 Germany 50 9.3%
5 France 23 4.3%
6 Hong Kong 10 1.9%
7 8 1.5%
8 Canada 8 1.5%
9 Portugal 7 1.3%
10 Taiwan 4 0.7%
11 United Kingdom 4 0.7%
12 Russia 1 0.2%
13 Sweden 1 0.2%