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 United States 41 37.6%
2 China 40 36.7%
3 Germany 8 7.3%
4 Netherlands 7 6.4%
5 Hong Kong 5 4.6%
6 Taiwan 3 2.8%
7 United Kingdom 1 0.9%
8 Portugal 1 0.9%
9 Sweden 1 0.9%
10 Malaysia 1 0.9%
11 Canada 1 0.9%