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 97 40.4%
2 United States 75 31.2%
3 China 37 15.4%
4 Germany 11 4.6%
5 France 6 2.5%
6 Canada 4 1.7%
7 United Kingdom 3 1.2%
8 India 2 0.8%
9 Philippines 2 0.8%
10 Singapore 1 0.4%
11 Korea, Republic of 1 0.4%
12 Australia 1 0.4%