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 154 66.1%
2 United States 41 17.6%
3 Germany 10 4.3%
4 Hong Kong 9 3.9%
5 Taiwan 6 2.6%
6 United Kingdom 5 2.1%
7 Singapore 2 0.9%
8 Switzerland 1 0.4%
9 Australia 1 0.4%
10 Austria 1 0.4%
11 Canada 1 0.4%
12 Japan 1 0.4%
13 Portugal 1 0.4%