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 15 40.5%
2 United States 10 27%
3 United Kingdom 3 8.1%
4 Canada 2 5.4%
5 Taiwan 2 5.4%
6 Estonia 1 2.7%
7 France 1 2.7%
8 Italy 1 2.7%
9 Korea, Republic of 1 2.7%
10 Singapore 1 2.7%