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
1 713 68.6%
2 China 166 16%
3 United States 117 11.3%
4 Germany 17 1.6%
5 France 7 0.7%
6 Japan 6 0.6%
7 Hong Kong 5 0.5%
8 United Kingdom 4 0.4%
9 Korea, Republic of 1 0.1%
10 Macao 1 0.1%
11 Taiwan 1 0.1%
12 Canada 1 0.1%