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 166 53.7%
2 United States 83 26.9%
3 Germany 38 12.3%
4 Canada 7 2.3%
5 Hong Kong 4 1.3%
6 Russia 3 1%
7 Taiwan 3 1%
8 France 2 0.6%
9 Switzerland 1 0.3%
10 Ireland 1 0.3%
11 Italy 1 0.3%