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 65 46.1%
2 United States 37 26.2%
3 Germany 14 9.9%
4 Hong Kong 10 7.1%
5 Netherlands 4 2.8%
6 Taiwan 3 2.1%
7 United Kingdom 2 1.4%
8 France 2 1.4%
9 Canada 2 1.4%
10 Portugal 1 0.7%
11 Russia 1 0.7%