BPG致力于知识的发现和传播
Total Visits of This Article
2019 | 总访问次数
排名 国家/地区 数量 占比
1 United States 32 44.4%
2 China 13 18.1%
3 Germany 9 12.5%
4 France 5 6.9%
5 United Kingdom 4 5.6%
6 Norway 2 2.8%
7 Sweden 2 2.8%
8 Taiwan 2 2.8%
9 Ukraine 1 1.4%
10 Hong Kong 1 1.4%
11 Japan 1 1.4%