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 136 61%
2 United States 52 23.3%
3 Netherlands 12 5.4%
4 Germany 7 3.1%
5 Hong Kong 6 2.7%
6 Taiwan 3 1.3%
7 United Kingdom 2 0.9%
8 Ireland 1 0.4%
9 Korea, Republic of 1 0.4%
10 Portugal 1 0.4%
11 Russia 1 0.4%
12 Finland 1 0.4%