BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 182 63.2%
2 United States 42 14.6%
3 Germany 39 13.5%
4 Netherlands 10 3.5%
5 Russia 4 1.4%
6 Ireland 3 1%
7 Malaysia 3 1%
8 Singapore 2 0.7%
9 Turkey 1 0.3%
10 United Kingdom 1 0.3%
11 Cambodia 1 0.3%