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 36 43.4%
2 United States 17 20.5%
3 Germany 16 19.3%
4 Nigeria 4 4.8%
5 India 3 3.6%
6 Spain 2 2.4%
7 Taiwan 1 1.2%
8 Saudi Arabia 1 1.2%
9 Singapore 1 1.2%
10 Netherlands 1 1.2%
11 Hong Kong 1 1.2%