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 162 51.4%
2 United States 62 19.7%
3 Germany 46 14.6%
4 France 24 7.6%
5 Netherlands 5 1.6%
6 Hong Kong 4 1.3%
7 Canada 4 1.3%
8 Australia 2 0.6%
9 Turkey 2 0.6%
10 United Kingdom 2 0.6%
11 India 1 0.3%
12 Finland 1 0.3%