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 28 38.4%
2 United States 21 28.8%
3 Germany 14 19.2%
4 India 3 4.1%
5 Taiwan 2 2.7%
6 United Kingdom 1 1.4%
7 Australia 1 1.4%
8 Italy 1 1.4%
9 Republic of Korea 1 1.4%
10 Guatemala 1 1.4%