BPG致力于知识的发现和传播
Total Visits of This Article
2017 | 总访问次数
排名 国家/地区 数量 占比
1 United States 68 68%
2 Iran, Islamic Republic of 6 6%
3 Pakistan 4 4%
4 China 4 4%
5 Germany 3 3%
6 Japan 3 3%
7 India 2 2%
8 Brazil 2 2%
9 Canada 2 2%
10 Chile 2 2%
11 Netherlands 2 2%
12 Korea, Republic of 1 1%
13 Russia 1 1%