BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 United States 95 63.3%
2 China 18 12%
3 Germany 11 7.3%
4 France 7 4.7%
5 Canada 6 4%
6 Taiwan 4 2.7%
7 United Kingdom 4 2.7%
8 Russia 2 1.3%
9 Korea, Republic of 1 0.7%
10 Malaysia 1 0.7%
11 Poland 1 0.7%