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 206 61.7%
2 United States 53 15.9%
3 Germany 40 12%
4 Canada 13 3.9%
5 United Kingdom 6 1.8%
6 Netherlands 4 1.2%
7 Hong Kong 4 1.2%
8 Japan 3 0.9%
9 Australia 2 0.6%
10 South Africa 2 0.6%
11 New Zealand 1 0.3%