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 231 57%
2 United States 106 26.2%
3 Germany 28 6.9%
4 Canada 13 3.2%
5 Russia 7 1.7%
6 Hong Kong 5 1.2%
7 India 3 0.7%
8 Japan 2 0.5%
9 Korea, Republic of 2 0.5%
10 Macao 2 0.5%
11 Taiwan 2 0.5%
12 United Kingdom 1 0.2%
13 Singapore 1 0.2%
14 Israel 1 0.2%
15 Italy 1 0.2%