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 147 57.6%
2 United States 42 16.5%
3 Germany 37 14.5%
4 Canada 12 4.7%
5 Russia 6 2.4%
6 Taiwan 3 1.2%
7 Netherlands 3 1.2%
8 Ireland 2 0.8%
9 United Kingdom 1 0.4%
10 Australia 1 0.4%
11 Hong Kong 1 0.4%