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 42 53.8%
2 China 18 23.1%
3 France 4 5.1%
4 Canada 4 5.1%
5 Ukraine 3 3.8%
6 United Kingdom 2 2.6%
7 Germany 2 2.6%
8 Hong Kong 1 1.3%
9 Malaysia 1 1.3%
10 Netherlands 1 1.3%