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 23 31.9%
2 China 20 27.8%
3 India 8 11.1%
4 France 6 8.3%
5 Brazil 5 6.9%
6 Nigeria 3 4.2%
7 Russia 2 2.8%
8 Singapore 2 2.8%
9 Spain 1 1.4%
10 Denmark 1 1.4%
11 Netherlands 1 1.4%