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 63 39.9%
2 United States 47 29.7%
3 Netherlands 12 7.6%
4 Germany 8 5.1%
5 Hong Kong 4 2.5%
6 Canada 4 2.5%
7 United Kingdom 4 2.5%
8 Taiwan 3 1.9%
9 Japan 3 1.9%
10 Kazakhstan 3 1.9%
11 Kyrgyzstan 2 1.3%
12 Australia 2 1.3%
13 Belgium 1 0.6%
14 1 0.6%
15 Portugal 1 0.6%