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 38 41.3%
2 China 24 26.1%
3 Netherlands 10 10.9%
4 Germany 7 7.6%
5 Taiwan 4 4.3%
6 Hong Kong 3 3.3%
7 Japan 2 2.2%
8 Malaysia 1 1.1%
9 Portugal 1 1.1%
10 Sweden 1 1.1%
11 France 1 1.1%