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 157 53.4%
2 United States 52 17.7%
3 Germany 42 14.3%
4 Sweden 20 6.8%
5 Malaysia 4 1.4%
6 3 1%
7 Taiwan 3 1%
8 United Kingdom 2 0.7%
9 Singapore 2 0.7%
10 Canada 2 0.7%
11 Hong Kong 2 0.7%
12 Netherlands 2 0.7%
13 Norway 2 0.7%
14 Russia 1 0.3%