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 China 49 40.5%
2 United States 25 20.7%
3 Germany 14 11.6%
4 Canada 12 9.9%
5 United Kingdom 5 4.1%
6 Taiwan 5 4.1%
7 Hong Kong 4 3.3%
8 Czech Republic 2 1.7%
9 Netherlands 2 1.7%
10 Portugal 1 0.8%
11 Ukraine 1 0.8%
12 Ireland 1 0.8%