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 43 46.2%
2 United States 18 19.4%
3 Germany 12 12.9%
4 Hong Kong 6 6.5%
5 Canada 3 3.2%
6 France 3 3.2%
7 Taiwan 3 3.2%
8 Czech Republic 2 2.2%
9 Portugal 1 1.1%
10 Sweden 1 1.1%
11 United Kingdom 1 1.1%