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 318 61.3%
2 United States 136 26.2%
3 Germany 21 4%
4 Hong Kong 14 2.7%
5 Taiwan 10 1.9%
6 United Kingdom 7 1.3%
7 Japan 6 1.2%
8 Canada 2 0.4%
9 Russia 2 0.4%
10 1 0.2%
11 Netherlands 1 0.2%
12 Portugal 1 0.2%