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 174 57.2%
2 United States 57 18.8%
3 Germany 35 11.5%
4 Canada 12 3.9%
5 Netherlands 5 1.6%
6 Ireland 4 1.3%
7 Viet Nam 2 0.7%
8 New Zealand 2 0.7%
9 Singapore 2 0.7%
10 Sri Lanka 2 0.7%
11 Switzerland 2 0.7%
12 United Kingdom 2 0.7%
13 India 2 0.7%
14 Austria 2 0.7%
15 Brazil 1 0.3%