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 52.3%
2 United States 18 20.9%
3 Germany 9 10.5%
4 Netherlands 5 5.8%
5 Romania 3 3.5%
6 Republic of Korea 2 2.3%
7 Hong Kong 1 1.2%
8 Taiwan 1 1.2%
9 United Kingdom 1 1.2%
10 1 1.2%