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 43 49.4%
2 United States 15 17.2%
3 Germany 11 12.6%
4 Hong Kong 8 9.2%
5 Netherlands 3 3.4%
6 Singapore 2 2.3%
7 Canada 2 2.3%
8 Taiwan 1 1.1%
9 United Kingdom 1 1.1%
10 Macao 1 1.1%