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 71 47.7%
2 United States 62 41.6%
3 Canada 3 2%
4 Germany 3 2%
5 Netherlands 2 1.3%
6 Czech Republic 2 1.3%
7 Taiwan 2 1.3%
8 United Kingdom 2 1.3%
9 France 1 0.7%
10 Switzerland 1 0.7%