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 469 78.2%
2 United States 58 9.7%
3 Germany 36 6%
4 Canada 11 1.8%
5 Singapore 4 0.7%
6 Hong Kong 4 0.7%
7 Japan 4 0.7%
8 Netherlands 3 0.5%
9 Taiwan 3 0.5%
10 Spain 2 0.3%
11 Sweden 2 0.3%
12 Australia 2 0.3%
13 Austria 1 0.2%
14 Ireland 1 0.2%