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 59 44%
2 United States 33 24.6%
3 Germany 14 10.4%
4 Netherlands 10 7.5%
5 Hong Kong 6 4.5%
6 Canada 4 3%
7 Taiwan 3 2.2%
8 United Kingdom 1 0.7%
9 1 0.7%
10 France 1 0.7%
11 Portugal 1 0.7%
12 Sweden 1 0.7%