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 44 37%
2 United States 40 33.6%
3 Germany 11 9.2%
4 Hong Kong 7 5.9%
5 Canada 4 3.4%
6 Australia 2 1.7%
7 France 2 1.7%
8 Italy 2 1.7%
9 Taiwan 2 1.7%
10 United Kingdom 1 0.8%
11 Japan 1 0.8%
12 Macao 1 0.8%
13 Netherlands 1 0.8%
14 Sweden 1 0.8%