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 22 33.3%
2 China 15 22.7%
3 Germany 12 18.2%
4 Japan 4 6.1%
5 Netherlands 3 4.5%
6 Malaysia 2 3%
7 Taiwan 2 3%
8 United Kingdom 1 1.5%
9 Canada 1 1.5%
10 New Zealand 1 1.5%
11 Republic of Korea 1 1.5%
12 Hong Kong 1 1.5%
13 Iraq 1 1.5%