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 162 51.4%
2 United States 61 19.4%
3 Germany 35 11.1%
4 Canada 22 7%
5 Taiwan 12 3.8%
6 Ireland 7 2.2%
7 Netherlands 6 1.9%
8 India 4 1.3%
9 Singapore 3 1%
10 Russia 2 0.6%
11 Korea, Republic of 1 0.3%