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 45 38.8%
2 China 33 28.4%
3 Germany 15 12.9%
4 Netherlands 6 5.2%
5 United Kingdom 5 4.3%
6 Russia 3 2.6%
7 Hong Kong 3 2.6%
8 Canada 2 1.7%
9 India 1 0.9%
10 Finland 1 0.9%
11 Singapore 1 0.9%
12 Ukraine 1 0.9%