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 37.7%
2 China 18 26.1%
3 Germany 13 18.8%
4 Netherlands 4 5.8%
5 2 2.9%
6 Poland 1 1.4%
7 Republic of Korea 1 1.4%
8 Taiwan 1 1.4%
9 Hong Kong 1 1.4%
10 Japan 1 1.4%
11 Macao 1 1.4%