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 299 65.6%
2 United States 92 20.2%
3 Germany 36 7.9%
4 Taiwan 9 2%
5 Hong Kong 6 1.3%
6 France 3 0.7%
7 Japan 3 0.7%
8 Canada 2 0.4%
9 Singapore 2 0.4%
10 Ireland 2 0.4%
11 New Zealand 1 0.2%
12 United Kingdom 1 0.2%