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 72 47.7%
2 United States 58 38.4%
3 Canada 6 4%
4 Germany 4 2.6%
5 Russia 4 2.6%
6 Spain 2 1.3%
7 Netherlands 2 1.3%
8 United Kingdom 2 1.3%
9 Switzerland 1 0.7%