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 26 34.7%
2 China 16 21.3%
3 Germany 14 18.7%
4 Taiwan 11 14.7%
5 Netherlands 4 5.3%
6 Republic of Korea 1 1.3%
7 Hong Kong 1 1.3%
8 Kazakhstan 1 1.3%
9 France 1 1.3%