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 United States 38 38.8%
2 China 36 36.7%
3 Germany 12 12.2%
4 Netherlands 5 5.1%
5 Japan 2 2%
6 Canada 2 2%
7 Cambodia 1 1%
8 Ukraine 1 1%
9 Venezuela, Bolivarian Republic of 1 1%