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 United States 36 51.4%
2 China 20 28.6%
3 Netherlands 4 5.7%
4 Russia 3 4.3%
5 Germany 2 2.9%
6 Moldova, Republic of 2 2.9%
7 Japan 1 1.4%
8 Spain 1 1.4%
9 United Kingdom 1 1.4%