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 Germany 23 32.4%
2 United States 13 18.3%
3 10 14.1%
4 China 10 14.1%
5 Republic of Korea 7 9.9%
6 Canada 3 4.2%
7 Japan 2 2.8%
8 Netherlands 1 1.4%
9 Thailand 1 1.4%
10 France 1 1.4%