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 45 54.2%
2 Germany 9 10.8%
3 China 8 9.6%
4 Netherlands 7 8.4%
5 Canada 4 4.8%
6 Romania 3 3.6%
7 Russia 2 2.4%
8 Ukraine 1 1.2%
9 Portugal 1 1.2%
10 Republic of Korea 1 1.2%
11 Japan 1 1.2%
12 Mexico 1 1.2%