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 33 39.3%
2 China 25 29.8%
3 Germany 12 14.3%
4 Malaysia 5 6%
5 Hong Kong 2 2.4%
6 Japan 2 2.4%
7 United Kingdom 2 2.4%
8 Republic of Korea 1 1.2%
9 Russia 1 1.2%
10 Singapore 1 1.2%