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 143 66.2%
2 United States 26 12%
3 Germany 16 7.4%
4 Netherlands 12 5.6%
5 Hong Kong 5 2.3%
6 Taiwan 5 2.3%
7 Canada 2 0.9%
8 United Kingdom 1 0.5%
9 India 1 0.5%
10 Ireland 1 0.5%
11 Japan 1 0.5%
12 Portugal 1 0.5%
13 Russia 1 0.5%
14 Singapore 1 0.5%