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 265 64%
2 United States 61 14.7%
3 Germany 39 9.4%
4 Canada 18 4.3%
5 Taiwan 6 1.4%
6 Hong Kong 5 1.2%
7 Norway 4 1%
8 Switzerland 4 1%
9 Russia 3 0.7%
10 Japan 2 0.5%
11 Bangladesh 2 0.5%
12 Denmark 2 0.5%
13 France 2 0.5%
14 Turkey 1 0.2%