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 14 28.6%
2 United States 11 22.4%
3 Germany 9 18.4%
4 Canada 5 10.2%
5 Netherlands 4 8.2%
6 Norway 1 2%
7 Republic of Korea 1 2%
8 Hong Kong 1 2%
9 India 1 2%
10 Japan 1 2%
11 Macao 1 2%