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 19 26%
2 United States 17 23.3%
3 Germany 14 19.2%
4 Netherlands 6 8.2%
5 Spain 4 5.5%
6 Korea, Republic of 3 4.1%
7 Canada 3 4.1%
8 United Kingdom 2 2.7%
9 Ireland 2 2.7%
10 Malaysia 1 1.4%
11 Turkey 1 1.4%
12 Norway 1 1.4%