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 71 54.6%
2 Netherlands 21 16.2%
3 Germany 10 7.7%
4 United States 10 7.7%
5 Russia 7 5.4%
6 United Kingdom 3 2.3%
7 Canada 3 2.3%
8 France 2 1.5%
9 Hong Kong 2 1.5%
10 Brazil 1 0.8%