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 27 35.5%
2 United States 23 30.3%
3 Germany 6 7.9%
4 Canada 5 6.6%
5 Australia 4 5.3%
6 Taiwan 4 5.3%
7 Netherlands 3 3.9%
8 Russia 1 1.3%
9 Hong Kong 1 1.3%
10 Japan 1 1.3%
11 France 1 1.3%