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 181 66.1%
2 United States 41 15%
3 Netherlands 15 5.5%
4 Germany 8 2.9%
5 Hong Kong 8 2.9%
6 Malaysia 6 2.2%
7 United Kingdom 3 1.1%
8 Canada 3 1.1%
9 Japan 3 1.1%
10 Russia 2 0.7%
11 Sweden 1 0.4%
12 Taiwan 1 0.4%
13 Portugal 1 0.4%
14 Ireland 1 0.4%