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 46 33.3%
2 United States 29 21%
3 Germany 15 10.9%
4 Netherlands 15 10.9%
5 United Kingdom 9 6.5%
6 France 6 4.3%
7 Taiwan 5 3.6%
8 Hong Kong 5 3.6%
9 Norway 4 2.9%
10 Japan 2 1.4%
11 Czech Republic 1 0.7%
12 Estonia 1 0.7%