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 55 52.9%
2 United States 25 24%
3 Germany 12 11.5%
4 India 4 3.8%
5 Netherlands 3 2.9%
6 Republic of Korea 1 1%
7 United Kingdom 1 1%
8 Algeria 1 1%
9 Australia 1 1%
10 Morocco 1 1%