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 200 57.1%
2 United States 69 19.7%
3 Germany 37 10.6%
4 Canada 20 5.7%
5 Hong Kong 7 2%
6 Netherlands 4 1.1%
7 United Kingdom 3 0.9%
8 Taiwan 3 0.9%
9 Turkey 2 0.6%
10 Russia 2 0.6%
11 Kazakhstan 2 0.6%
12 Indonesia 1 0.3%