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 61 54%
2 United States 20 17.7%
3 Netherlands 10 8.8%
4 Germany 7 6.2%
5 Hong Kong 6 5.3%
6 Taiwan 2 1.8%
7 United Kingdom 2 1.8%
8 Canada 1 0.9%
9 France 1 0.9%
10 Portugal 1 0.9%
11 Russia 1 0.9%
12 Sweden 1 0.9%