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 205 55.4%
2 United States 78 21.1%
3 Germany 43 11.6%
4 Canada 14 3.8%
5 Hong Kong 10 2.7%
6 India 4 1.1%
7 Korea, Republic of 3 0.8%
8 Macao 3 0.8%
9 Taiwan 3 0.8%
10 Ukraine 2 0.5%
11 Russia 2 0.5%
12 France 1 0.3%
13 Japan 1 0.3%
14 United Kingdom 1 0.3%