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 36 47.4%
2 United States 14 18.4%
3 Netherlands 11 14.5%
4 Taiwan 4 5.3%
5 Germany 3 3.9%
6 Hong Kong 3 3.9%
7 France 2 2.6%
8 United Kingdom 1 1.3%
9 Norway 1 1.3%
10 Russia 1 1.3%