BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 226 60.4%
2 Germany 57 15.2%
3 United States 55 14.7%
4 Taiwan 16 4.3%
5 Netherlands 3 0.8%
6 Russia 3 0.8%
7 Singapore 2 0.5%
8 Japan 2 0.5%
9 Turkey 2 0.5%
10 Ukraine 2 0.5%
11 United Kingdom 2 0.5%
12 Australia 2 0.5%
13 Canada 1 0.3%
14 Hong Kong 1 0.3%