BPG致力于知识的发现和传播
Total Visits of This Article
2018 | 总访问次数
排名 国家/地区 数量 占比
1 United States 26 37.1%
2 China 18 25.7%
3 Germany 13 18.6%
4 India 3 4.3%
5 Netherlands 3 4.3%
6 Republic of Korea 3 4.3%
7 Hong Kong 2 2.9%
8 Malaysia 1 1.4%
9 United Kingdom 1 1.4%