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 49 54.4%
2 United States 15 16.7%
3 Canada 8 8.9%
4 United Kingdom 5 5.6%
5 Germany 4 4.4%
6 Hong Kong 4 4.4%
7 Taiwan 2 2.2%
8 Czech Republic 1 1.1%
9 Japan 1 1.1%
10 Singapore 1 1.1%