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 68 43.3%
2 United States 44 28%
3 Netherlands 16 10.2%
4 Germany 14 8.9%
5 Hong Kong 7 4.5%
6 Japan 2 1.3%
7 Russia 2 1.3%
8 Canada 2 1.3%
9 United Kingdom 1 0.6%
10 Portugal 1 0.6%