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 225 60.3%
2 United States 51 13.7%
3 Germany 32 8.6%
4 Canada 29 7.8%
5 Netherlands 10 2.7%
6 Taiwan 8 2.1%
7 Russia 6 1.6%
8 Singapore 5 1.3%
9 3 0.8%
10 Hong Kong 2 0.5%
11 India 1 0.3%
12 United Kingdom 1 0.3%