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 China 106 63.9%
2 Germany 22 13.3%
3 United States 22 13.3%
4 Republic of Korea 4 2.4%
5 Romania 3 1.8%
6 India 3 1.8%
7 Iran, Islamic Republic of 1 0.6%
8 Netherlands 1 0.6%
9 Spain 1 0.6%
10 United Kingdom 1 0.6%
11 Hungary 1 0.6%
12 Finland 1 0.6%