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 43 48.3%
2 United States 20 22.5%
3 Germany 10 11.2%
4 Hong Kong 5 5.6%
5 Canada 3 3.4%
6 France 2 2.2%
7 Taiwan 2 2.2%
8 United Kingdom 1 1.1%
9 Netherlands 1 1.1%
10 Norway 1 1.1%
11 Portugal 1 1.1%