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 223 60.3%
2 United States 57 15.4%
3 Germany 44 11.9%
4 Netherlands 25 6.8%
5 Russia 7 1.9%
6 Australia 4 1.1%
7 Canada 2 0.5%
8 Finland 2 0.5%
9 Taiwan 2 0.5%
10 United Kingdom 2 0.5%
11 France 1 0.3%
12 Hong Kong 1 0.3%