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 26 32.9%
2 United States 22 27.8%
3 Germany 14 17.7%
4 France 5 6.3%
5 Canada 3 3.8%
6 Hong Kong 2 2.5%
7 Tunisia 2 2.5%
8 United Kingdom 2 2.5%
9 Netherlands 1 1.3%
10 Norway 1 1.3%
11 Czech Republic 1 1.3%