BPG致力于知识的发现和传播
Total Visits of This Article
2017 | 总访问次数
排名 国家/地区 数量 占比
1 United States 36 35%
2 China 22 21.4%
3 Czechia 11 10.7%
4 Germany 8 7.8%
5 France 7 6.8%
6 India 6 5.8%
7 Taiwan 4 3.9%
8 Mexico 3 2.9%
9 Czech Republic 2 1.9%
10 Singapore 2 1.9%
11 Republic of Korea 1 1%
12 Japan 1 1%