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 30 37.5%
2 United States 25 31.2%
3 Germany 11 13.8%
4 Netherlands 4 5%
5 Romania 3 3.8%
6 Republic of Korea 2 2.5%
7 Canada 2 2.5%
8 Australia 1 1.2%
9 Japan 1 1.2%
10 United Kingdom 1 1.2%