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 171 60.4%
2 United States 46 16.3%
3 Germany 38 13.4%
4 Hong Kong 6 2.1%
5 Canada 6 2.1%
6 Russia 5 1.8%
7 Macao 4 1.4%
8 Taiwan 3 1.1%
9 Hungary 2 0.7%
10 Ukraine 1 0.4%
11 Netherlands 1 0.4%