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
1 136 42.4%
2 United States 79 24.6%
3 China 57 17.8%
4 Germany 19 5.9%
5 France 11 3.4%
6 India 4 1.2%
7 Canada 3 0.9%
8 United Kingdom 3 0.9%
9 Taiwan 2 0.6%
10 Czech Republic 2 0.6%
11 Australia 2 0.6%
12 Japan 1 0.3%
13 Philippines 1 0.3%
14 Russia 1 0.3%