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 276 62.9%
2 United States 67 15.3%
3 Germany 30 6.8%
4 Netherlands 25 5.7%
5 Canada 12 2.7%
6 United Kingdom 10 2.3%
7 Hong Kong 9 2.1%
8 Taiwan 3 0.7%
9 India 2 0.5%
10 Mexico 2 0.5%
11 Belgium 1 0.2%
12 Romania 1 0.2%
13 Singapore 1 0.2%