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 United States 48 66.7%
2 China 9 12.5%
3 France 4 5.6%
4 Malaysia 4 5.6%
5 United Kingdom 2 2.8%
6 Canada 2 2.8%
7 Germany 1 1.4%
8 Korea, Republic of 1 1.4%
9 Lao People's Democratic Republic 1 1.4%