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 25 43.1%
2 China 6 10.3%
3 Japan 4 6.9%
4 South Africa 4 6.9%
5 Mexico 3 5.2%
6 Italy 3 5.2%
7 France 3 5.2%
8 Germany 3 5.2%
9 Iran 3 5.2%
10 Republic of Korea 2 3.4%
11 Peru 1 1.7%
12 Iran, Islamic Republic of 1 1.7%