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 China 27 39.1%
2 United States 27 39.1%
3 France 4 5.8%
4 Korea, Republic of 4 5.8%
5 India 2 2.9%
6 Germany 1 1.4%
7 Philippines 1 1.4%
8 Singapore 1 1.4%
9 Taiwan 1 1.4%
10 United Kingdom 1 1.4%