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 United States 38 34.9%
2 China 32 29.4%
3 Germany 14 12.8%
4 Netherlands 9 8.3%
5 Canada 5 4.6%
6 Taiwan 3 2.8%
7 Hong Kong 3 2.8%
8 India 2 1.8%
9 United Kingdom 2 1.8%
10 Portugal 1 0.9%