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 79 36.9%
2 United States 79 36.9%
3 Netherlands 19 8.9%
4 Germany 13 6.1%
5 Hong Kong 5 2.3%
6 Taiwan 5 2.3%
7 Canada 4 1.9%
8 United Kingdom 2 0.9%
9 Japan 2 0.9%
10 Norway 2 0.9%
11 Portugal 1 0.5%
12 Russia 1 0.5%
13 Italy 1 0.5%
14 Mexico 1 0.5%