BPG致力于知识的发现和传播
Total Visits of This Article
2022 | 总访问次数
排名 国家/地区 数量 占比
1 China 218 43.1%
2 United States 112 22.1%
3 Netherlands 99 19.6%
4 Germany 27 5.3%
5 Canada 22 4.3%
6 Korea, Republic of 10 2%
7 Taiwan 5 1%
8 United Kingdom 4 0.8%
9 Bangladesh 3 0.6%
10 France 3 0.6%
11 Sweden 2 0.4%
12 Ukraine 1 0.2%