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 56 43.8%
2 United States 37 28.9%
3 Germany 13 10.2%
4 Hong Kong 5 3.9%
5 Netherlands 4 3.1%
6 United Kingdom 4 3.1%
7 Canada 2 1.6%
8 Japan 2 1.6%
9 Portugal 1 0.8%
10 Russia 1 0.8%
11 Singapore 1 0.8%
12 Taiwan 1 0.8%
13 1 0.8%