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 235 63%
2 United States 62 16.6%
3 Germany 31 8.3%
4 Canada 27 7.2%
5 Hong Kong 5 1.3%
6 Indonesia 3 0.8%
7 Netherlands 2 0.5%
8 Singapore 2 0.5%
9 Taiwan 2 0.5%
10 United Kingdom 2 0.5%
11 Switzerland 1 0.3%
12 Romania 1 0.3%