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 28 29.8%
2 United States 21 22.3%
3 Netherlands 18 19.1%
4 Germany 10 10.6%
5 United Kingdom 6 6.4%
6 Taiwan 4 4.3%
7 Hong Kong 4 4.3%
8 Japan 1 1.1%
9 France 1 1.1%
10 Russia 1 1.1%