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 65 56%
2 United States 19 16.4%
3 Germany 9 7.8%
4 Netherlands 6 5.2%
5 France 4 3.4%
6 United Kingdom 4 3.4%
7 Korea, Republic of 3 2.6%
8 Czech Republic 2 1.7%
9 India 2 1.7%
10 Romania 1 0.9%
11 Canada 1 0.9%