BPG致力于知识的发现和传播
Total Visits of This Article
2018 | 总访问次数
排名 国家/地区 数量 占比
1 China 114 64.4%
2 United States 33 18.6%
3 Germany 13 7.3%
4 Netherlands 6 3.4%
5 Japan 2 1.1%
6 Egypt 2 1.1%
7 Taiwan 2 1.1%
8 Finland 1 0.6%
9 Hong Kong 1 0.6%
10 Italy 1 0.6%
11 Canada 1 0.6%
12 Switzerland 1 0.6%