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 145 61.4%
2 China 60 25.4%
3 Germany 10 4.2%
4 Taiwan 7 3%
5 Ukraine 4 1.7%
6 Netherlands 4 1.7%
7 Republic of Korea 2 0.8%
8 France 1 0.4%
9 Hong Kong 1 0.4%
10 Ireland 1 0.4%
11 Japan 1 0.4%