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 482 58.9%
2 United States 152 18.6%
3 Netherlands 97 11.9%
4 Germany 46 5.6%
5 Canada 14 1.7%
6 France 6 0.7%
7 Taiwan 5 0.6%
8 United Kingdom 4 0.5%
9 Nigeria 2 0.2%
10 Russia 2 0.2%
11 Austria 2 0.2%
12 Hong Kong 2 0.2%
13 India 2 0.2%
14 Korea, Republic of 1 0.1%
15 Singapore 1 0.1%