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 103 41.5%
2 United States 63 25.4%
3 Netherlands 32 12.9%
4 Germany 12 4.8%
5 Taiwan 11 4.4%
6 Russia 9 3.6%
7 Hong Kong 6 2.4%
8 France 3 1.2%
9 Canada 2 0.8%
10 Ireland 2 0.8%
11 United Kingdom 2 0.8%
12 Spain 1 0.4%
13 Japan 1 0.4%
14 Brazil 1 0.4%