BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 China 23 32.9%
2 United States 20 28.6%
3 Germany 10 14.3%
4 Korea, Republic of 6 8.6%
5 France 4 5.7%
6 Philippines 2 2.9%
7 Israel 2 2.9%
8 Japan 1 1.4%
9 United Kingdom 1 1.4%
10 Hong Kong 1 1.4%