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 191 53.2%
2 United States 70 19.5%
3 Germany 41 11.4%
4 Canada 16 4.5%
5 Malaysia 9 2.5%
6 Hong Kong 7 1.9%
7 Taiwan 6 1.7%
8 Russia 4 1.1%
9 Singapore 4 1.1%
10 United Kingdom 3 0.8%
11 Netherlands 2 0.6%
12 Sweden 2 0.6%
13 India 2 0.6%
14 Switzerland 1 0.3%
15 Norway 1 0.3%