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 50 56.2%
2 United States 17 19.1%
3 Taiwan 8 9%
4 Germany 7 7.9%
5 Hong Kong 3 3.4%
6 Netherlands 1 1.1%
7 Portugal 1 1.1%
8 United Kingdom 1 1.1%
9 France 1 1.1%