BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 China 43 39.8%
2 United States 37 34.3%
3 Germany 10 9.3%
4 France 6 5.6%
5 United Kingdom 3 2.8%
6 India 3 2.8%
7 Czech Republic 2 1.9%
8 Hong Kong 1 0.9%
9 Japan 1 0.9%
10 Russia 1 0.9%
11 Turkey 1 0.9%