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 84 60.9%
2 United States 24 17.4%
3 Germany 7 5.1%
4 Netherlands 6 4.3%
5 Taiwan 5 3.6%
6 United Kingdom 3 2.2%
7 Canada 3 2.2%
8 Hong Kong 3 2.2%
9 Singapore 2 1.4%
10 Portugal 1 0.7%