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 155 67.4%
2 United States 26 11.3%
3 Germany 25 10.9%
4 Ireland 8 3.5%
5 Singapore 3 1.3%
6 Switzerland 2 0.9%
7 United Kingdom 2 0.9%
8 Brazil 2 0.9%
9 Romania 2 0.9%
10 Japan 2 0.9%
11 India 2 0.9%
12 Korea, Republic of 1 0.4%