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 19 41.3%
2 Germany 9 19.6%
3 China 8 17.4%
4 Netherlands 5 10.9%
5 Brazil 2 4.3%
6 Republic of Korea 1 2.2%
7 Spain 1 2.2%
8 United Kingdom 1 2.2%