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 United States 27 31.4%
2 China 21 24.4%
3 Germany 12 14%
4 Singapore 8 9.3%
5 France 6 7%
6 Canada 5 5.8%
7 Hong Kong 4 4.7%
8 India 1 1.2%
9 Korea, Republic of 1 1.2%
10 United Kingdom 1 1.2%