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 107 48%
2 United States 102 45.7%
3 Canada 3 1.3%
4 Netherlands 2 0.9%
5 Singapore 2 0.9%
6 Switzerland 2 0.9%
7 Taiwan 1 0.4%
8 Russia 1 0.4%
9 Austria 1 0.4%
10 Germany 1 0.4%
11 Korea, Republic of 1 0.4%