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 United States 41 27.2%
2 Netherlands 34 22.5%
3 China 26 17.2%
4 France 13 8.6%
5 Germany 13 8.6%
6 10 6.6%
7 Canada 3 2%
8 United Kingdom 2 1.3%
9 Singapore 2 1.3%
10 Czech Republic 2 1.3%
11 Australia 1 0.7%
12 Malaysia 1 0.7%
13 Russia 1 0.7%
14 Sweden 1 0.7%
15 Taiwan 1 0.7%