BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 China 30 25.4%
2 Germany 29 24.6%
3 United States 18 15.3%
4 Ecuador 12 10.2%
5 Russia 7 5.9%
6 Netherlands 6 5.1%
7 Japan 5 4.2%
8 Canada 4 3.4%
9 Spain 3 2.5%
10 France 2 1.7%
11 Mexico 1 0.8%
12 Portugal 1 0.8%