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 142 46.9%
2 United States 55 18.2%
3 Netherlands 34 11.2%
4 Germany 32 10.6%
5 Canada 22 7.3%
6 Ireland 7 2.3%
7 Japan 4 1.3%
8 Singapore 2 0.7%
9 United Kingdom 2 0.7%
10 Ukraine 1 0.3%
11 Brazil 1 0.3%
12 France 1 0.3%