BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 203 51.4%
2 United States 120 30.4%
3 Germany 38 9.6%
4 Taiwan 13 3.3%
5 Hong Kong 5 1.3%
6 Canada 4 1%
7 Russia 3 0.8%
8 Switzerland 2 0.5%
9 Australia 2 0.5%
10 India 2 0.5%
11 United Kingdom 2 0.5%
12 Japan 1 0.3%