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 45 52.9%
2 United States 17 20%
3 Germany 12 14.1%
4 Netherlands 3 3.5%
5 Canada 2 2.4%
6 Romania 2 2.4%
7 Taiwan 1 1.2%
8 United Kingdom 1 1.2%
9 Republic of Korea 1 1.2%
10 Greece 1 1.2%