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 204 59.3%
2 United States 84 24.4%
3 Germany 47 13.7%
4 Finland 2 0.6%
5 Australia 1 0.3%
6 Canada 1 0.3%
7 Hong Kong 1 0.3%
8 Japan 1 0.3%
9 Russia 1 0.3%
10 Singapore 1 0.3%
11 Turkey 1 0.3%