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 United States 50 47.6%
2 Germany 16 15.2%
3 China 13 12.4%
4 France 11 10.5%
5 Netherlands 6 5.7%
6 India 3 2.9%
7 Hong Kong 2 1.9%
8 Italy 1 1%
9 Norway 1 1%
10 Russia 1 1%
11 Australia 1 1%