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 63 56.8%
2 United States 22 19.8%
3 Germany 8 7.2%
4 Netherlands 8 7.2%
5 Hong Kong 4 3.6%
6 Poland 2 1.8%
7 Portugal 1 0.9%
8 Sweden 1 0.9%
9 United Kingdom 1 0.9%
10 France 1 0.9%