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
1 161 50.5%
2 United States 63 19.7%
3 China 57 17.9%
4 Germany 10 3.1%
5 France 9 2.8%
6 Canada 5 1.6%
7 Czech Republic 3 0.9%
8 Australia 2 0.6%
9 United Kingdom 2 0.6%
10 India 2 0.6%
11 Japan 1 0.3%
12 Malaysia 1 0.3%
13 Philippines 1 0.3%
14 Turkey 1 0.3%
15 Hong Kong 1 0.3%