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 200 71.7%
2 United States 38 13.6%
3 Germany 17 6.1%
4 Taiwan 7 2.5%
5 Hong Kong 5 1.8%
6 Australia 3 1.1%
7 Canada 3 1.1%
8 Netherlands 2 0.7%
9 Portugal 1 0.4%
10 Switzerland 1 0.4%
11 India 1 0.4%
12 United Kingdom 1 0.4%