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 51 44.3%
2 United States 43 37.4%
3 Germany 6 5.2%
4 Hong Kong 5 4.3%
5 United Kingdom 2 1.7%
6 Canada 2 1.7%
7 Australia 1 0.9%
8 Japan 1 0.9%
9 Netherlands 1 0.9%
10 Portugal 1 0.9%
11 Russia 1 0.9%
12 Taiwan 1 0.9%