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 138 50.7%
2 United States 78 28.7%
3 Germany 26 9.6%
4 Ireland 8 2.9%
5 Canada 6 2.2%
6 Russia 5 1.8%
7 Singapore 3 1.1%
8 Netherlands 2 0.7%
9 Finland 2 0.7%
10 India 1 0.4%
11 Korea, Republic of 1 0.4%
12 Latvia 1 0.4%
13 Uzbekistan 1 0.4%