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
1 112 41.2%
2 United States 74 27.2%
3 China 53 19.5%
4 Germany 11 4%
5 France 6 2.2%
6 Canada 6 2.2%
7 Taiwan 4 1.5%
8 India 2 0.7%
9 Malaysia 1 0.4%
10 Philippines 1 0.4%
11 Hong Kong 1 0.4%
12 United Kingdom 1 0.4%