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 134 46.7%
2 United States 73 25.4%
3 Netherlands 30 10.5%
4 Germany 19 6.6%
5 India 15 5.2%
6 France 6 2.1%
7 Nigeria 4 1.4%
8 Sweden 2 0.7%
9 Taiwan 1 0.3%
10 Ukraine 1 0.3%
11 Hong Kong 1 0.3%
12 Australia 1 0.3%