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 159 57.2%
2 United States 55 19.8%
3 Germany 43 15.5%
4 Hong Kong 4 1.4%
5 India 3 1.1%
6 Taiwan 3 1.1%
7 Netherlands 2 0.7%
8 Singapore 2 0.7%
9 Estonia 2 0.7%
10 1 0.4%
11 Canada 1 0.4%
12 Ireland 1 0.4%
13 Japan 1 0.4%
14 Ukraine 1 0.4%