BPG致力于知识的发现和传播
Total Visits of This Article
2023 | 总访问次数
排名 国家/地区 数量 占比
1 China 210 75.3%
2 United States 46 16.5%
3 Germany 8 2.9%
4 Canada 6 2.2%
5 Russia 3 1.1%
6 Finland 2 0.7%
7 France 1 0.4%
8 Netherlands 1 0.4%
9 Spain 1 0.4%
10 Ukraine 1 0.4%