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 39 39.4%
2 United States 31 31.3%
3 Netherlands 8 8.1%
4 Czech Republic 6 6.1%
5 Egypt 6 6.1%
6 France 3 3%
7 Russia 3 3%
8 Germany 2 2%
9 Japan 1 1%