BPG致力于知识的发现和传播
Total Visits of This Article
2018 | 总访问次数
排名 国家/地区 数量 占比
1 United States 39 54.2%
2 Germany 10 13.9%
3 China 7 9.7%
4 Hong Kong 5 6.9%
5 Canada 4 5.6%
6 Republic of Korea 2 2.8%
7 Singapore 2 2.8%
8 Netherlands 1 1.4%
9 1 1.4%
10 France 1 1.4%