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 United States 73 37.4%
2 China 71 36.4%
3 Taiwan 13 6.7%
4 Germany 13 6.7%
5 Hong Kong 11 5.6%
6 France 3 1.5%
7 Canada 3 1.5%
8 Japan 2 1%
9 Norway 2 1%
10 Portugal 1 0.5%
11 Sweden 1 0.5%
12 Ukraine 1 0.5%
13 United Kingdom 1 0.5%