BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 China 55 44.4%
2 United States 28 22.6%
3 Germany 11 8.9%
4 Netherlands 9 7.3%
5 Czech Republic 6 4.8%
6 United Kingdom 4 3.2%
7 France 3 2.4%
8 India 3 2.4%
9 Korea, Republic of 3 2.4%
10 Canada 1 0.8%
11 Taiwan 1 0.8%