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 50.8%
2 United States 25 19.5%
3 Germany 14 10.9%
4 Hong Kong 6 4.7%
5 Netherlands 4 3.1%
6 Canada 4 3.1%
7 Taiwan 3 2.3%
8 United Kingdom 2 1.6%
9 Norway 2 1.6%
10 Portugal 1 0.8%
11 Russia 1 0.8%
12 France 1 0.8%