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 336 69%
2 United States 63 12.9%
3 Germany 36 7.4%
4 Netherlands 27 5.5%
5 Hong Kong 7 1.4%
6 United Kingdom 4 0.8%
7 Sweden 3 0.6%
8 Singapore 2 0.4%
9 India 2 0.4%
10 Malaysia 2 0.4%
11 Canada 2 0.4%
12 Azerbaijan 1 0.2%
13 Serbia 1 0.2%
14 Mauritius 1 0.2%