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 172 49.4%
2 United States 79 22.7%
3 Germany 29 8.3%
4 Canada 25 7.2%
5 India 17 4.9%
6 United Kingdom 6 1.7%
7 Ukraine 4 1.1%
8 Hong Kong 3 0.9%
9 Korea, Republic of 3 0.9%
10 Brazil 3 0.9%
11 Netherlands 2 0.6%
12 Poland 1 0.3%
13 Russia 1 0.3%
14 Singapore 1 0.3%
15 Austria 1 0.3%
16 Ecuador 1 0.3%