BPG致力于知识的发现和传播
Total Visits of This Article
2019 | 总访问次数
排名 国家/地区 数量 占比
1 806 77.4%
2 United States 142 13.6%
3 China 49 4.7%
4 Germany 17 1.6%
5 France 10 1%
6 Korea, Republic of 4 0.4%
7 United Kingdom 4 0.4%
8 Japan 2 0.2%
9 Taiwan 2 0.2%
10 Canada 2 0.2%
11 Norway 1 0.1%
12 Poland 1 0.1%
13 Hong Kong 1 0.1%
14 Ukraine 1 0.1%