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 30 43.5%
2 United States 10 14.5%
3 Netherlands 9 13%
4 Germany 6 8.7%
5 Taiwan 5 7.2%
6 Nigeria 4 5.8%
7 France 3 4.3%
8 Hong Kong 1 1.4%
9 New Zealand 1 1.4%