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 27 29.3%
2 United States 25 27.2%
3 Netherlands 12 13%
4 Germany 8 8.7%
5 France 6 6.5%
6 Japan 4 4.3%
7 Nigeria 4 4.3%
8 Ukraine 3 3.3%
9 Norway 1 1.1%
10 Russia 1 1.1%
11 Singapore 1 1.1%