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 48 51.6%
2 United States 17 18.3%
3 Taiwan 6 6.5%
4 Hong Kong 5 5.4%
5 Japan 4 4.3%
6 Netherlands 4 4.3%
7 Russia 3 3.2%
8 Norway 2 2.2%
9 United Kingdom 2 2.2%
10 Singapore 1 1.1%
11 Germany 1 1.1%