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 24 34.8%
2 United States 21 30.4%
3 Netherlands 6 8.7%
4 France 4 5.8%
5 Germany 3 4.3%
6 Spain 3 4.3%
7 Canada 3 4.3%
8 Belgium 2 2.9%
9 Greece 1 1.4%
10 India 1 1.4%
11 Malaysia 1 1.4%