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 54 61.4%
2 United States 9 10.2%
3 Netherlands 8 9.1%
4 Germany 5 5.7%
5 United Kingdom 4 4.5%
6 Canada 3 3.4%
7 France 2 2.3%
8 Russia 1 1.1%
9 Taiwan 1 1.1%
10 Turkey 1 1.1%