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 45 31.2%
2 United States 45 31.2%
3 Germany 17 11.8%
4 Netherlands 14 9.7%
5 France 6 4.2%
6 India 5 3.5%
7 Nigeria 4 2.8%
8 Italy 2 1.4%
9 Morocco 2 1.4%
10 Japan 1 0.7%
11 Latvia 1 0.7%
12 Russia 1 0.7%
13 Ukraine 1 0.7%