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 34 34.7%
2 China 32 32.7%
3 Germany 13 13.3%
4 Netherlands 6 6.1%
5 Hong Kong 3 3.1%
6 Romania 3 3.1%
7 Taiwan 2 2%
8 2 2%
9 Republic of Korea 2 2%
10 Poland 1 1%