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
1 882 75.1%
2 United States 122 10.4%
3 China 109 9.3%
4 Germany 24 2%
5 France 12 1%
6 India 6 0.5%
7 United Kingdom 6 0.5%
8 Taiwan 5 0.4%
9 Norway 3 0.3%
10 Singapore 2 0.2%
11 Hong Kong 2 0.2%
12 Czech Republic 2 0.2%