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 180 60.4%
2 United States 61 20.5%
3 Germany 34 11.4%
4 Taiwan 10 3.4%
5 United Kingdom 2 0.7%
6 Brazil 2 0.7%
7 Hong Kong 2 0.7%
8 Hungary 2 0.7%
9 Iran, Islamic Republic of 2 0.7%
10 Netherlands 2 0.7%
11 Russia 1 0.3%