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 United States 25 32.5%
2 China 24 31.2%
3 Germany 9 11.7%
4 Netherlands 5 6.5%
5 Japan 3 3.9%
6 Romania 3 3.9%
7 Republic of Korea 2 2.6%
8 Hong Kong 2 2.6%
9 Iran, Islamic Republic of 1 1.3%
10 Canada 1 1.3%
11 Singapore 1 1.3%
12 United Kingdom 1 1.3%