BPG致力于知识的发现和传播
Total Visits of This Article
2017 | 总访问次数
排名 国家/地区 数量 占比
1 China 66 39.3%
2 United States 55 32.7%
3 Germany 15 8.9%
4 France 13 7.7%
5 Nigeria 4 2.4%
6 India 3 1.8%
7 Israel 3 1.8%
8 Netherlands 3 1.8%
9 Ukraine 3 1.8%
10 Russia 2 1.2%
11 Spain 1 0.6%