BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 China 86 35.7%
2 United States 65 27%
3 Canada 61 25.3%
4 Germany 6 2.5%
5 Portugal 6 2.5%
6 Turkey 5 2.1%
7 France 5 2.1%
8 United Kingdom 3 1.2%
9 Togo 2 0.8%
10 Singapore 1 0.4%
11 Czech Republic 1 0.4%