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 20 35.7%
2 Germany 12 21.4%
3 China 11 19.6%
4 Netherlands 4 7.1%
5 Republic of Korea 3 5.4%
6 Romania 3 5.4%
7 Australia 1 1.8%
8 Finland 1 1.8%
9 Hong Kong 1 1.8%