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 74 53.2%
2 United States 28 20.1%
3 Germany 14 10.1%
4 Canada 7 5%
5 Taiwan 7 5%
6 Hong Kong 3 2.2%
7 Japan 2 1.4%
8 Portugal 1 0.7%
9 Russia 1 0.7%
10 Singapore 1 0.7%
11 United Kingdom 1 0.7%