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 21 25%
2 Netherlands 19 22.6%
3 United States 16 19%
4 Germany 10 11.9%
5 United Kingdom 6 7.1%
6 Taiwan 5 6%
7 Hong Kong 3 3.6%
8 Malaysia 2 2.4%
9 France 1 1.2%
10 Russia 1 1.2%