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 China 32 38.1%
2 United States 28 33.3%
3 Germany 12 14.3%
4 Netherlands 4 4.8%
5 India 3 3.6%
6 Hong Kong 1 1.2%
7 Portugal 1 1.2%
8 Republic of Korea 1 1.2%
9 Taiwan 1 1.2%
10 United Kingdom 1 1.2%