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 45 50.6%
2 United States 17 19.1%
3 Norway 9 10.1%
4 Netherlands 7 7.9%
5 Germany 3 3.4%
6 Hong Kong 2 2.2%
7 Russia 2 2.2%
8 United Kingdom 1 1.1%
9 France 1 1.1%
10 Japan 1 1.1%
11 Malaysia 1 1.1%