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 45 48.4%
2 United States 25 26.9%
3 France 8 8.6%
4 Germany 7 7.5%
5 Hong Kong 3 3.2%
6 Netherlands 1 1.1%
7 Russia 1 1.1%
8 Taiwan 1 1.1%
9 Belgium 1 1.1%
10 Canada 1 1.1%