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 28 48.3%
2 China 8 13.8%
3 United Kingdom 6 10.3%
4 Germany 5 8.6%
5 France 4 6.9%
6 Canada 3 5.2%
7 Russia 2 3.4%
8 Moldova, Republic of 1 1.7%
9 Poland 1 1.7%