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 36 42.4%
2 China 17 20%
3 Germany 14 16.5%
4 Netherlands 5 5.9%
5 Republic of Korea 3 3.5%
6 Romania 3 3.5%
7 Korea, Republic of 2 2.4%
8 2 2.4%
9 Canada 1 1.2%
10 Chile 1 1.2%
11 Greece 1 1.2%