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
1 657 73.5%
2 China 128 14.3%
3 United States 60 6.7%
4 Germany 23 2.6%
5 France 10 1.1%
6 United Kingdom 7 0.8%
7 Korea, Republic of 3 0.3%
8 Hong Kong 2 0.2%
9 Norway 1 0.1%
10 Ukraine 1 0.1%
11 Europe 1 0.1%
12 Canada 1 0.1%