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 China 34 38.6%
2 United States 23 26.1%
3 Germany 16 18.2%
4 Hong Kong 6 6.8%
5 Norway 2 2.3%
6 Taiwan 2 2.3%
7 United Kingdom 1 1.1%
8 France 1 1.1%
9 Portugal 1 1.1%
10 Russia 1 1.1%
11 Canada 1 1.1%