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 52 37.1%
2 United States 47 33.6%
3 Germany 9 6.4%
4 Netherlands 9 6.4%
5 Hong Kong 7 5%
6 Taiwan 4 2.9%
7 Canada 3 2.1%
8 Australia 2 1.4%
9 United Kingdom 2 1.4%
10 Japan 2 1.4%
11 Portugal 1 0.7%
12 Russia 1 0.7%
13 Sweden 1 0.7%