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 40 41.2%
2 China 22 22.7%
3 Germany 7 7.2%
4 India 5 5.2%
5 Japan 5 5.2%
6 Finland 4 4.1%
7 France 4 4.1%
8 Taiwan 4 4.1%
9 Spain 3 3.1%
10 Brazil 1 1%
11 Russia 1 1%
12 Ireland 1 1%