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 42 60.9%
2 United States 11 15.9%
3 Hong Kong 5 7.2%
4 Netherlands 4 5.8%
5 Germany 3 4.3%
6 Canada 1 1.4%
7 France 1 1.4%
8 Russia 1 1.4%
9 Taiwan 1 1.4%