BPG致力于知识的发现和传播
Total Visits of This Article
2019 | 总访问次数
排名 国家/地区 数量 占比
1 United States 39 56.5%
2 Germany 9 13%
3 China 5 7.2%
4 France 5 7.2%
5 Canada 3 4.3%
6 Australia 2 2.9%
7 United Kingdom 2 2.9%
8 Hong Kong 1 1.4%
9 Singapore 1 1.4%
10 Taiwan 1 1.4%
11 Ukraine 1 1.4%