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 47 30.7%
2 United States 46 30.1%
3 Canada 20 13.1%
4 Netherlands 14 9.2%
5 Germany 13 8.5%
6 Australia 3 2%
7 Taiwan 3 2%
8 Ecuador 2 1.3%
9 France 2 1.3%
10 Singapore 2 1.3%
11 Japan 1 0.7%