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 62 41.9%
2 United States 43 29.1%
3 Germany 13 8.8%
4 Netherlands 12 8.1%
5 Hong Kong 5 3.4%
6 Taiwan 3 2%
7 United Kingdom 2 1.4%
8 Canada 2 1.4%
9 Japan 2 1.4%
10 Norway 2 1.4%
11 Portugal 1 0.7%
12 Russia 1 0.7%