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 54 46.2%
2 Germany 20 17.1%
3 United States 13 11.1%
4 France 8 6.8%
5 Netherlands 8 6.8%
6 Singapore 3 2.6%
7 Canada 3 2.6%
8 Hong Kong 3 2.6%
9 Czech Republic 2 1.7%
10 Sweden 1 0.9%
11 Taiwan 1 0.9%
12 United Kingdom 1 0.9%