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 United States 253 51.7%
2 China 182 37.2%
3 Germany 30 6.1%
4 Netherlands 9 1.8%
5 Macao 3 0.6%
6 United Kingdom 3 0.6%
7 Singapore 2 0.4%
8 New Zealand 2 0.4%
9 Ireland 2 0.4%
10 Japan 2 0.4%
11 Russia 1 0.2%