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 147 61.8%
2 United States 34 14.3%
3 Germany 20 8.4%
4 Japan 8 3.4%
5 Hong Kong 7 2.9%
6 Singapore 5 2.1%
7 Netherlands 4 1.7%
8 Russia 4 1.7%
9 Sweden 3 1.3%
10 Taiwan 2 0.8%
11 Ireland 2 0.8%
12 Israel 1 0.4%
13 Korea, Republic of 1 0.4%