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 38 38.8%
2 United States 26 26.5%
3 Germany 14 14.3%
4 Taiwan 7 7.1%
5 Hong Kong 4 4.1%
6 Brazil 2 2%
7 Canada 2 2%
8 France 1 1%
9 India 1 1%
10 Netherlands 1 1%
11 Portugal 1 1%
12 United Kingdom 1 1%