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 257 65.7%
2 United States 57 14.6%
3 Germany 35 9%
4 Hong Kong 16 4.1%
5 Taiwan 7 1.8%
6 Russia 4 1%
7 India 4 1%
8 Canada 2 0.5%
9 New Zealand 2 0.5%
10 Nigeria 2 0.5%
11 Singapore 2 0.5%
12 United Kingdom 1 0.3%
13 Australia 1 0.3%
14 Japan 1 0.3%