BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 465 49.9%
2 United States 218 23.4%
3 Netherlands 103 11.1%
4 Germany 70 7.5%
5 Sweden 19 2%
6 Canada 18 1.9%
7 France 12 1.3%
8 Ireland 10 1.1%
9 Australia 4 0.4%
10 Russia 4 0.4%
11 South Africa 2 0.2%
12 United Kingdom 2 0.2%
13 Pakistan 2 0.2%
14 Czech Republic 1 0.1%
15 Viet Nam 1 0.1%