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 2675 81.4%
2 United States 335 10.2%
3 China 231 7%
4 Germany 14 0.4%
5 Hong Kong 11 0.3%
6 France 11 0.3%
7 Taiwan 3 0.1%
8 Korea, Republic of 2 0.1%
9 Netherlands 1 0%
10 Japan 1 0%
11 Canada 1 0%
12 United Kingdom 1 0%