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 97 46.4%
2 United States 81 38.8%
3 Germany 7 3.3%
4 Hong Kong 7 3.3%
5 4 1.9%
6 Taiwan 4 1.9%
7 Russia 2 1%
8 Singapore 1 0.5%
9 United Kingdom 1 0.5%
10 Ireland 1 0.5%
11 Japan 1 0.5%
12 Netherlands 1 0.5%
13 Nigeria 1 0.5%
14 Portugal 1 0.5%