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
1 686 76.6%
2 United States 128 14.3%
3 China 50 5.6%
4 Germany 14 1.6%
5 France 7 0.8%
6 United Kingdom 4 0.4%
7 Canada 3 0.3%
8 Australia 1 0.1%
9 Hong Kong 1 0.1%
10 Korea, Republic of 1 0.1%
11 Singapore 1 0.1%