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 84 59.2%
2 United States 27 19%
3 Germany 12 8.5%
4 Hong Kong 4 2.8%
5 Canada 4 2.8%
6 United Kingdom 4 2.8%
7 Switzerland 2 1.4%
8 Norway 2 1.4%
9 Portugal 1 0.7%
10 Russia 1 0.7%
11 France 1 0.7%