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 255 51.5%
2 United States 159 32.1%
3 Germany 41 8.3%
4 Hong Kong 17 3.4%
5 Singapore 7 1.4%
6 Netherlands 5 1%
7 Taiwan 3 0.6%
8 Canada 2 0.4%
9 France 2 0.4%
10 Italy 2 0.4%
11 Macao 1 0.2%
12 United Kingdom 1 0.2%